| Guangdong Longtao New Materials Co., Ltd | 2024-05-14 | B1 Rubber Plastic Insulation Pipe, Shock Absorber, Pipeline Insulation Material | 5000K CNY | 미지원 |
| Langfang Xinwo Thermal Insulation Materials Co., Ltd | 2016-09-02 | B1 Rubber Plastic Insulation Pipe, Steel Structure Full-Length Insulation Gasket, Genuine Gold Board | 1000K CNY | 미지원 |
| Beleteste Thermal Insulation Materials (Langfang) Co., Ltd | 2025-08-01 | B1 Rubber Plastic Insulation Pipe, Rubber And Plastic Board, Rock Wool Board | 500K CNY | 미지원 |
| Langfang Bozhun Energy saving Technology Co., Ltd | 2023-05-24 | B1 Rubber Plastic Insulation Pipe, Rubber And Plastic Board, Rubber And Plastic Pipe | 6800K CNY | 미지원 |
| Langfang Pincheng Energy saving Technology Co., Ltd | 2024-04-01 | B1 Rubber Plastic Insulation Pipe, Fireproof Wrapping Roll Material, Rubber And Plastic Pipe | 2000K CNY | 미지원 |
| Langfang Kaihao Thermal Insulation Materials Co., Ltd | 2016-01-11 | B1 Rubber Plastic Insulation Pipe, Aluminum Magnesium Silicate Board, Polyurethane Pipe | 8000K CNY | 미지원 |
| Langfang Shunkang Building Materials Co., Ltd | 2011-12-13 | B1 Rubber Plastic Insulation Pipe, Glass Wool Products, Foam Glass Products | 30000K CNY | 미지원 |
| Langfang Ningyu Thermal Insulation Materials Co., Ltd | 2018-10-25 | B1 Rubber Plastic Insulation Pipe, Polyurethane Board, Extruded Polystyrene Board | 10000K CNY | 미지원 |
| Dacheng County Quanwang Building Materials Co., Ltd | 2013-04-22 | B1 Rubber Plastic Insulation Pipe, Rubber Sponge, Rubber Insulation Board | 500K CNY | 미지원 |
| Langfang Zhenghan New Material Technology Co., Ltd | 2026-03-16 | B1 Rubber Plastic Insulation Pipe, Fireproof Black Cotton, Cnc Cutting Machine | 100K CNY | 미지원 |