... ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA, PRS, RS, IRS Material: Bronze, Aluminum Bronze, Nickel Aluminum Bronze, Manganese ... ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA, PRS, RS, IRS and etc., and we're working under Quality ... System ISO9001:2000.We can design, research, develop and produce all kinds of ... ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA, PRS, RS, IRS