| Langfang Xutong Thermal Insulation Materials Co., Ltd | 2013-03-27 | Silicate Tube, Steam Pipeline Iron Sheet Insulation, Magnesium Silicate Insulation Board | 1000K CNY | Non pris en charge |
| Hejian Jiake Thermal Insulation Materials Co., Ltd | 2018-07-06 | Silicate Tube, Perforated Sound-Absorbing Panel In Basement, Fiberglass Ceiling Sound-Absorbing Material | 1880K CNY | Non pris en charge |
| Langfang New Era Chemical Building Materials Co., Ltd | 1998-09-22 | Silicate Tube, Rubber Adhesive, Waterproof Backing Board | 120000K CNY | Non pris en charge |
| Langfang Senbo Thermal Insulation Building Materials Co., Ltd | 2012-12-05 | Silicate Tube, Decorative Integrated Panel, Polyurethane Edge Sealing Rock Wool Composite Board | 10000K CNY | Non pris en charge |
| Langfang Pincheng Energy saving Technology Co., Ltd | 2024-04-01 | Silicate Tube, Aluminum Silicate Tube, Rubber And Plastic Board | 2000K CNY | Non pris en charge |
| Langfang Jinbang Security Fireproof Materials Co., Ltd | 2018-11-26 | Silicate Tube, Explosion Venting, Explosion-Proof | 500K CNY | Non pris en charge |
| Dongguan Ouke Thermal Insulation Materials Co., Ltd | 2017-07-25 | Silicate Tube, Rock Wool Pipe Series Products, Glass Wool Felt Series Products | 500K CNY | Non pris en charge |
| Langfang Yueheng Thermal Insulation Materials Co., Ltd | 2014-07-03 | Silicate Tube, Silicate Board, Silicate Board/Pipe | 20000K CNY | Non pris en charge |
| Langfang Xinying Thermal Insulation Materials Co., Ltd | 2015-05-04 | Silicate Tube, Rock Wool Pipe, Inorganic Fiber Spray Cotton | 2000K CNY | Non pris en charge |
| Hebei Xinmeisi Insulation Engineering Co., Ltd | 2023-05-04 | Silicate Tube, Rubber And Plastic Pipe, Homogeneous Board | 10080K CNY | Non pris en charge |