Carbon Steel Fasteners, Gr.4.8, Gr.5.8, Gr.6.8, Gr.8.8, Gr.10.8, Gr.12.9, ASME B18.2.1 Hex Bolts ASME B18.2.2 Hex Nuts ASME B18.22.1, Stud Bolt, Hex Bolt, Hex Bolt med delvis tråd, hex bolt med fuld gevind, tråd. Hex Socket Cap Screw, Hex Nut, Flat Washer, Spring Washer.
- Zhengzhou Huitong Pipeline Equipment Co., Ltd.