Updated: Friday the 25^th of May, 2012 Zhejiang Guobang Steel Co. Ltd

We have gained the following certificates: KR,CCS, BV, ABS,GOST,ISO9001:2000, PED97/23/EC and AD 2000-Merkblattwo We could supply: Seamless Pipes & Tubes: 6-630mm outside diameter by 1-40mm wall thickness Grade includes: most 300 series, like 304/L/H,316/L/LN/Ti,321/H,347/H,317/L,310S,904L,duplex 31803,32205,31500,Super Duplex 32750,32760 etc. Specification includes: ASTM/ASME A/SA213,A/SA269,A/SA312,A/SA334,A/SA376,A/SA511,A/SA789,A/SA790 etc. EN 10216,GOST-9941,GOST-9940 DIN17456,DIN17458 JIS G3459,G3463,