... : Carbon steel, stainless steel. Unitary Clamps, Heavy Duty Clamps, A type heavy duty pipe couplings.Material: Carbon steel, stainless steel ... High Manganese Steel Castings,++Aluminum & Zinc Die casting parts,++Brass, Aluminum and Bronze parts,++Flanges & Valve Parts,++Steel and ... , Gray Iron, Stainless Steel, Carbon Steel, Alloy Steel, Brass Alloy, Aluminum Alloy, Zinc Alloy etc. With many years ...