... StandardISO1704-2007, IACS W18 and W22, API-2F(U.S.A), Rules of Classification Societies, GB/T 549-1996(China) and ... , DNV, GL, KR, LR, NK, RINA and RMRS and so on. ISO Quality Management System ISO9001-2000, API-Q1 Quality and ... approved by API (USA), CSQA(China) and QSMSCC (China).How to order anchor chain ? Chain Diameter & GradeLength: 27.5m or 25mFinish: H. D. Galvanized ...