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 Cnau ASME B18.22.1, Stud Bolt, Hex Bolt, Hex Bolt edau llawn, Hex Bolt â rhannol edau Bolt, Hex Bolt gyda chnau rhannol U-Bolt, Sgriw Cap Soced Hex, Cnau Hex, Golchwr Fflat, Wasier Gwanwyn.
- Zhengzhou Huitong Pipeline Equipment Co, Ltd.