Gem Bids For 27.50-Meter-Long Studlink Chains, 50 Mm Diameter Grade-U2, With One D Shackle Fitted At Each End, Hot Dipgalvanised Dee Shackles, 50 Mm Diameter, Conforming Tois-6132 Part-Ii, Grade 63., Danforth Anchors, 2500 Kgeach.