Shandong Dajin Metal Material with 14 years steel products export experience,mainly supply steel bar,size range 5mm-1000mm with different supply condition（hot rolled,forged,cold drawn）;high strength steel plate,steel tube etc.The main grade is A105 5140 B7 1020 1045 4140 4340 8620 1215 12L14 316 304 etc.We have deep processing factory,which can provide surface treatment,heat treatment,threading,chamfering,cutting and bending service.