Updated Oct 26, 2026 · Public platform & industry data

Oct 26, 2026 Updated

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2026 Top 10 Irregular Parts Manufacturers in China

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Top-rated Irregular Parts suppliers, How to choose a Irregular Parts manufacturer, Best Irregular Parts companies in China

The top 10 Irregular Parts manufacturers in China for 2026 are: Handan Johnson Fasteners Manufacturing Co., Ltd, Handan Hongdefa Fastener Manufacturing Co., Ltd, Handan Fudu Fasteners Co., Ltd, Liyingke (Shandong) Radiation Protection Engineering Co., Ltd, Foshan Yingdouben Stainless Steel Products Co., Ltd, Hengshui Oulile Rubber Products Co., Ltd, Yongnian District Langjun Fastener Wholesale Business Department, Hebei Yinglun Fastener Manufacturing Co., Ltd, Hebei Zhongyi Fastener Manufacturing Co., Ltd, Shanxi Zhongbiao Flange Forging Industry Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Handan Johnson Fasteners Manufacturing Co., Ltd
Overall Score4.9 / 5
Est. Date2021-03-05
Registered Capital2000K CNY

Handan Johnson Fasteners Manufacturing Co., Ltd., registered at Ximingyang Village South, Linmingguan Town, Yongnian District, Handan City, Hebei Province, with Yongnian District Market Supervision and Administration Bureau as the registration authority and Wu Yunfei as the legal representative, engages in the manufacturing and sales of fasteners, metal products, industrial and mining accessories, photovoltaic accessories, seismic accessories, transportation facility accessories, stainless steel products, rubber products, plastic products (excluding medical), rigging, mechanical equipment and accessories; Sales of steel, building materials, mechanical and electrical equipment, and labor protection supplies; Import and export business of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Irregular Parts, Water Stop Screw, High Strength Screws

Top 2
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Handan Hongdefa Fastener Manufacturing Co., Ltd
Overall Score4.7 / 5
Est. Date2018-12-06
Registered Capital2000K CNY

Handan Hongdefa Fastener Manufacturing Co., Ltd., with its registered address at Unit 2, Building 3, Longcheng Industrial Park, Xisu Village, Xisu Town, Yongnian District, Handan City, Hebei Province, is registered with the Yongnian District Administration for Industry and Commerce. The legal representative is Wang Xianzhou, and the business scope includes fasteners, metal products, industrial and mining accessories, photovoltaic accessories, building accessories, power equipment, railway accessories, transportation facility accessories, rubber products, plastic products, and rigging manufacturing and sales; Sales of steel, mechanical and electrical equipment, and labor protection supplies; Import and export business of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Irregular Parts, Hex Nut, Double-Ended Bolt

Top 3
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Handan Fudu Fasteners Co., Ltd
Overall Score4.7 / 5
Est. Date2020-05-27
Registered Capital2000K CNY

Handan Fudu Fasteners Co., Ltd., registered at Dongmingyang Village, Linmingguan Town, Yongnian District, Handan City, Hebei Province, with the Yongnian District Market Supervision and Administration Bureau as the registration authority and Li Zikai as the legal representative, engages in the manufacturing and sales of fasteners, metal products, transportation facility accessories, power equipment, building accessories, photovoltaic accessories, industrial and mining accessories, railway accessories, seismic supports, underground comprehensive pipe gallery supports, and rigging; Sales of hardware tools, electromechanical equipment, general mechanical equipment, plastic products (excluding medical), rubber products, labor protection supplies, and steel; Import and export business of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Irregular Parts, Water Stop Screw, Battery Panel Edge Pressure Block

TOP4
Liyingke (Shandong) Radiation Protection Engineering Co., Ltd
Overall Score4.6 / 5
Est. Date2021-03-29
Registered Capital18000K CNY

Liyingke (Shandong) Radiation Protection Engineering Co., Ltd., registered at Room 001, Building 210, No. 8 Weisan Road, Fenghuang Industrial Park, Liuyuan Street, Dongchangfu District, Liaocheng City, Shandong Province (within the campus of Haifeite Intelligent Technology Company), registered with the Market Supervision Administration of Dongchangfu District, Liaocheng City, with Ren Shike as the legal representative. Its business scope includes licensed projects: manufacturing of civil defense engineering protection equipment; Construction project construction; Electrical installation services; Installation of protective equipment for civil air defense engineering; Construction project design; Construction labor subcontracting. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses issued by relevant departments.) General projects: metal structure manufacturing; Rolling and processing of non-ferrous metals; Manufacturing and processing of doors and windows; Sales of new metal functional materials; Sales of high-performance non-ferrous metals and alloy materials; Research and development of new material technology; Sales of metal materials; Labor services (excluding labor dispatch); Motor manufacturing; Manufacturing of hardware products; Import and export of goods; Manufacturing of technical glass products; Sales of new organic active materials; Complete sets of nuclear power equipment and engineering technology research and development; Engineering management services; Water pollution control; External contracting projects; Sales of Class I medical devices; Sales of Class II medical devices; Second type of medical equipment leasing; Construction of metal doors and windows engineering; Steel rolling processing; Internet of Things application services; Research and development of intelligent robots; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of metal products; Sales of non-ferrous metal alloys; Sales of building materials; Sales of building decoration materials; Sales of metal fittings for construction; Sales of insulation and soundproofing materials; Wholesale of hardware products; Sales of specialized equipment for environmental protection; Sales of industrial control computers and systems; Data processing and storage support services; Sales of fans and blowers; Sales of refrigeration and air conditioning equipment; Sales of optical glass; Sales of glassware; Sales of optical instruments; Sales of drug testing instruments; Sales of household appliances; Home appliance installation services; Sales of mechanical and electrical equipment; Sales of ecological environment materials; Sales of specialized instruments and meters for environmental monitoring; Sales of gas and liquid separation and purification equipment; Professional cleaning, washing, and disinfection services. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Irregular Parts, Lead Wire, Soft Lead Curtain

TOP5
Foshan Yingdouben Stainless Steel Products Co., Ltd
Overall Score4.6 / 5
Est. Date2018-05-30
Registered Capital10000K CNY

Foshan Yingdouben Stainless Steel Products Co., Ltd., with its registered address at Workshop 1, No. 2 Xinglong 10th Road, Guanglong Industrial Zone, Shizhou Village, Chencun Town, Shunde District, Foshan City, Guangdong Province (registered address declared), is registered with the Market Supervision Administration of Shunde District, Foshan City. The legal representative is Liu Hongxia, and the business scope includes general projects such as non-ferrous metal rolling and processing; Manufacturing of metal structures; Sales of metal materials; Metal cutting processing services; Sales of building materials; Sales of metal products; Retail of hardware products; Sales of building decoration materials. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Irregular Parts, Ultra Wide And Ultra Long Tank Barrel, Seamless Tube, Decorative Tube, Square Tube, Glossy Tube

TOP6
Hengshui Oulile Rubber Products Co., Ltd
Overall Score4.5 / 5
Est. Date2024-04-01
Registered Capital500K CNY

Hengshui Oulile Rubber Products Co., Ltd., registered at No. 12 Wangzhuang Village, Jingzhou Town, Jing County, Hengshui City, Hebei Province, with the registration authority of Jing County Market Supervision Administration and the legal representative of Chejin, has a business scope including general projects: rubber product manufacturing; Sales of rubber products; Research and development of new material technology; Sales of high-quality synthetic rubber; Sealing component manufacturing; Manufacturing of plastic products; Sales of plastic products; Sales of Class II medical devices; Wholesale of hardware products; Retail of hardware products; Sales of metal products; Sales of seals; Sales of daily miscellaneous goods; Sales of glass fiber reinforced plastic products; Sales of bearings, gears, and transmission components. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Irregular Parts, Polyurethane Gasket, Dehydration Sieve Plate

TOP7
Yongnian District Langjun Fastener Wholesale Business Department
Overall Score4.5 / 5
Est. Date2023-09-15
Registered Capital-

Yongnian District Langjun Fastener Wholesale Business Department, with its registered address at No. 14, Row 11, Industrial City West District, Linmingguan Town, Yongnian District, Handan City. The registration authority is Yongnian District Market Supervision and Administration Bureau, and the legal representative is Jiang Yueqiang. Its business scope includes general projects such as fastener sales; Sales of metal products; Sales of metal materials; Sales of metal chains and other metal products; Wholesale of hardware products; Sales of building materials; Sales of mechanical parts and components; Sales of power facilities and equipment; Sales of metal structures; Sales of bearings, gears, and transmission components; Sales of metal fittings for construction; Sales of rubber products (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law).. Core products: Irregular Parts, , Building Accessories

TOP8
Hebei Yinglun Fastener Manufacturing Co., Ltd
Overall Score4.5 / 5
Est. Date2018-05-15
Registered Capital10000K CNY

Hebei Yinglun Fastener Manufacturing Co., Ltd., registered at Xidongtou Village, Xisu Town, Yongnian District, Handan City, Hebei Province, with the Yongnian District Market Supervision and Administration Bureau as the registration authority and Liu Heng as the legal representative, engages in the manufacturing and sales of fasteners, metal products, industrial and mining accessories, photovoltaic accessories, building accessories, power equipment, railway accessories, transportation facility accessories, rubber products, plastic products, and rigging; Sales of steel, hardware and electrical equipment, and labor protection products; Import and export business of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Irregular Parts, Anchor Bolt, Iron Tower Welding Plate

TOP9
Hebei Zhongyi Fastener Manufacturing Co., Ltd
Overall Score4.4 / 5
Est. Date2021-04-22
Registered Capital3000K CNY

Hebei Zhongyi Fastener Manufacturing Co., Ltd., registered at Xiduan Zhuang Village, Linmingguan Town, Yongnian District, Handan City, Hebei Province, with the Yongnian District Market Supervision Administration as the registration authority and Chen Weipo as the legal representative, engages in the manufacturing and sales of fasteners, steel structure accessories, building accessories, metal products, industrial and mining accessories, seismic accessories, railway accessories, transportation facility accessories, photovoltaic accessories, bridge accessories, agricultural machinery accessories, automotive accessories, ship accessories, power fittings, hardware tools, stainless steel products, mining support products and accessories, conveying equipment and accessories, and power equipment; Sales of steel, building materials, chemical products (excluding hazardous chemicals), steel wire ropes, bearings, springs, personal protective equipment, hardware and electrical equipment, rigging, non-ferrous metals (excluding rare and precious metals), wires and cables, stainless steel products, mechanical equipment, rubber products, and plastic products; Import and export business of goods. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Irregular Parts, Welding Nut, Steel Structure Tie Rod

TOP10
Shanxi Zhongbiao Flange Forging Industry Co., Ltd
Overall Score4.4 / 5
Est. Date2006-11-08
Registered Capital25000K CNY

Shanxi Zhongbiao Flange Forging Industry Co., Ltd. is registered in Cuijiazhuang Industrial Zone, Dingxiang County, Xinzhou. The registration authority is the Dingxiang County Market Supervision Administration, and the legal representative is Feng Longwei. Its business scope includes forging manufacturing, mechanical parts processing, sales of flanges, steel, and forgings, and import and export of goods. The company's self operated product import and export business (projects that require approval by law can only be carried out after approval by relevant departments).. Core products: Irregular Parts, Metal Ring Forgings, Free Forging Cylinder Parts

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Handan Johnson Fasteners Manufacturing Co., Ltd2021-03-05Irregular Parts, Water Stop Screw, High Strength Screws2000K CNYSupported
Handan Hongdefa Fastener Manufacturing Co., Ltd2018-12-06Irregular Parts, Hex Nut, Double-Ended Bolt2000K CNYSupported
Handan Fudu Fasteners Co., Ltd2020-05-27Irregular Parts, Water Stop Screw, Battery Panel Edge Pressure Block2000K CNYSupported
Liyingke (Shandong) Radiation Protection Engineering Co., Ltd2021-03-29Irregular Parts, Lead Wire, Soft Lead Curtain18000K CNYSupported
Foshan Yingdouben Stainless Steel Products Co., Ltd2018-05-30Irregular Parts, Ultra Wide And Ultra Long Tank Barrel, Seamless Tube, Decorative Tube, Square Tube, Glossy Tube10000K CNYSupported
Hengshui Oulile Rubber Products Co., Ltd2024-04-01Irregular Parts, Polyurethane Gasket, Dehydration Sieve Plate500K CNYNot Supported
Yongnian District Langjun Fastener Wholesale Business Department2023-09-15Irregular Parts, , Building Accessories-Supported
Hebei Yinglun Fastener Manufacturing Co., Ltd2018-05-15Irregular Parts, Anchor Bolt, Iron Tower Welding Plate10000K CNYSupported
Hebei Zhongyi Fastener Manufacturing Co., Ltd2021-04-22Irregular Parts, Welding Nut, Steel Structure Tie Rod3000K CNYSupported
Shanxi Zhongbiao Flange Forging Industry Co., Ltd2006-11-08Irregular Parts, Metal Ring Forgings, Free Forging Cylinder Parts25000K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of special-shaped parts, it is recommended to prioritize checking the key dimensional tolerances, material properties, and other specification parameters of the product to ensure compatibility with equipment assembly or engineering scenarios, such as special structural requirements for building curtain wall connectors or mechanical transmission components.
  • When selecting suppliers, reference can be made to product matching degree, business qualifications, enterprise activity, industry performance, and platform statistical information, especially suitable for procurement scenarios with high precision requirements for special-shaped parts in the automotive mold or aerospace fields.
  • Irregular parts are commonly used in industrial automation production lines for connecting non-standard equipment. When purchasing, it is necessary to consider technical indicators such as load strength and corrosion resistance to avoid system adaptation problems caused by parameter deviations.
  • Different application scenarios, such as energy equipment or electronic device heat dissipation structures, have differentiated requirements for the thermal conductivity, weight, and other characteristics of special-shaped parts. It is recommended to evaluate their product applicability through industry data support from suppliers.

Knowledge Base

Q

The type selection and corresponding welding process methods for welding special-shaped parts need to be determined comprehensively based on materials, structures, and usage scenarios. The following are the main classifications and process points: 1、 Classified by application scenario Body structural components Complex curved parts such as the connection between the roof and side panels require laser brazing to ensure accuracy and strength. Power system components launch

Q

This article provides a detailed explanation of the definition, application scenarios, and manufacturing difficulties of special-shaped parts, helping readers to have a comprehensive understanding of this important component in the industrial field.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs