Anchor Chain Swivel Pieces 1.Grade 2 or Grade 3 2.Dia. from 22mm ... ,BV,CCS,GL,RINA,NK,KR and Anchor Chain Swivel Pieces Swivel Pieces (22mm--81mm) manufacture, with LR, BV, CCS, GL, RINA ... shackles are supplied here in our factory Anchor Chain Swivel Pieces