... ASTM,JIS, DIN, BS,GB, standard Chain Slings Our business line:Manufactures rigging, lifting Slings, hardware, rope, chain cable for the oil ... bolts and eye nuts,swivels,sleeve ferrules,chain blocks,chain slings,hooks,connecting links,binders,rings,chains,wire ropes,anchors,snap ... ,ratchet buckles .etc and other marine hardwares such as cleat,round base,door hinge,croos,deck filler in steel,bollard .etc ...