stud chain 1.Material:CM490, CM690 2.Size: 17.5mm-130mm 3.Grade: U2, U3 4. All class certificate Stud chain1. Material: alloy ... dip galvanize or according to customer's requirement5. Certificate: LR, ABS, DNV, BV, NK, GL, RINA, CCS, IRS, KR6. Competitive ... , Singapore, India, England, Germany, Italy, Canda, America and so on.Stud anchor chainStudless anchor chainOffshore mooring chain stud chain