we are supplier of steel products , like steel bar, steel plate, steel coil and forged flange , casting flange, steel wire rope, alloy lifting chain and so on. we have iso certificate . if you are interested in any of our products, please do not hesitate to contact us . our website www.rrzk.com tel:+86-10-62191369 fax:86-10-62191372 gloria831020@yahoo.com muzizhoubd@hotmail.com