SHENYANG FIVE SIGMA IMP/EXP TRADING CO., LTD is our company name. We are an international and professional trading company registered in Shenyang, China. Our main business lines are import and export of goods such as heavy steel castings, iron castings, forgings, heat treatment, work piece machining, etc. The unit net weight is up to 100 MT. Our main products are: slag ladle, slag pot, housing of crusher, cylinder block for the generator, trunnion, runner hub, chisel, striker pin, heat treatment roller, girth gear, bearing bush, copper and bronze rods and wires and so on. ASTM, ASME, DIN and JIS, etc are the international standards and specifications we are applying strictly to manufacture and inspect the products.