Carbon-steel tubing Tenders , Bars and rods Tenders , Hot-rolled bars and rods Tenders , Tubes, pipes and hollow profiles Tenders , Steel tubes and fittings Tenders , Lead bars, rods, profiles and wire Tenders , Lead tubes, pipes and tube or pipe fittings Tenders , Zinc bars, rods, profiles and wire Tenders , Zinc tubes, pipes and tube or pipe fittings Tenders , Tin bars, rods, profiles and wire Tenders , Tin tubes, pipes and tube or pipe fittings Tenders , Welding accessories Tenders , Thermal insulating material Tenders , Tubes and pipes other than iron and steel tubes Tenders , Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery Tenders , Heat-exchange units and machinery for liquefying air or other gases Tenders , Heat-exchange units Tenders , Water heaters and heating for buildings; plumbing equipment Tenders , Laboratory equipment Tenders