Profile: Shijiazhuang Donghuan Malleable Iron Castings Co.Ltd specializes in manufacturing pipe fittings. We supply malleable iron fittings, ductile iron fittings, gray iron fittings and other steel products. We also offer tube clamps, air hose couplings, camlock couplings, carbon steel pipe nipples, electric power fittings, steam couplings, and gas meter connectors. Double bolt clamps with plated iron two-bolt clamp and machine bolts and hex nuts.