Grade 2 and Grade 3 Kenter Shackle 1.Professional manufacturer 2.Grade 2 or Grade 3 3.Cert.:LR,BV,CCS,GL,RINA,NK,KR and DNV Grade 2 and Grade 3 Kenter Shackle1.Professional manufacturer2.Grade 2 or Grade 33.Cert.:LR,BV,CCS,GL,RINA,NK,KR and DNV Grade 2 and Grade 3 Kenter Shackle