Diameter:600 to 6300mm Standard:ASME,EN,DIN,BS etc. Certificates:9 ship classification society(DNV,BV,ABS,GL, ISO9001:2008

sleeve,cylinder,roll shell1)Material: carbon steel,alloy steel,stainless steel2)standard of steel: ASME, DIN, BS, EN, JIS etc3)Forgings(OD from300-3000mm,height from400 to 2000)  with high quality,reasonable price & on time delivery.4)Certificated by 9 classification societies such as DNV,BV,ABS, GL,RINA,LR, KR, NK,CCS,and CQC ISO9001:2008.5) customers' different requirements allowed