... of load chain:6mm,8mm,10mm HSC Type Chain Pulley Block Grade A Chain 20Mn2 Capacity: 0.5~20tonDia of load chain ... -dipped galvanized,electro galvanized,PVC coated or as you required.Grade:G30,G43,G70,G80,C100Manufacture Standard:ISO,DIN,BS,JIS ... customers from all over the world. HSC Type Chain Pulley Block Grade A Chain 20Mn2