Pipe Fittings, Flanges, Valves manufacturer / supplier in China, offering Stainless Steel/Carbon Steel Thread Rod/U Bolt/Concrete Bolt with Nuts and Washer, DIN933/DIN944 Zinc Plated Full Thread Hex Head Nut and Bolt, DIN 933/934 Hex Bolt/ Eye Bolt/ Flange Bolt / Foundation Bolt/T Head Bolt and so on.