1.Material:200,300,400 Series 2.Finish:Black 3.OD:30-180MM 4.Certification:ISO 5.Standard:AISI,ASTM,DIN,EN,GB,JIS Etc 316L Stainless Steel Black Round Rod Product Stainless Steel Black Round Bar Material 201,202,304,309S,310S,316,316L,321,430F And So On Certification ISO9001 Size As Your Requirements Finish Pickled,Polish,Hairline,Mirror,Peeling,Smooth Turn Etc Length Specified Length, Multiple ...