Used for the production of the hull, sea oil platform, platform tube contact and other structural parts. Notes: 1.Standard:  GB, ASTM, ASME, JIS, DIN, BS, EN, ISO and relative standards are available for the customers' requirements. 2,The performance of Z15,Z25, Z35 are available for various grades 3.US Tests:  JB4730, GB/T2970, A435, A577, A588, JISG0801, JISG0901, SEL072, BS5996, NFS04-305 are supplemented by all testing means & devices 4, Delivery States: Heat treatment facilities for hot-rolled, controlled rolling, normalizing, annealing, tempering,quenching, normalizing plus tempering, quenching and tempering and other delivery states are available for customers' requirements. 5,Tests: HIC, SSC, SPWHT,Macrostructure, detection of defects, and Hardness as well as DWTT test for pipelines steel plates are also available for clients.