... 20ton Dia of load chain:6mm,8mm,10mm HSC Type Chain Pulley Block Grade A Chain 20Mn2 Capacity: 0.5~20tonDia of ... load chain:6mm,8mm,10mm Test load: 0. ... galvanized,electro galvanized,PVC coated or as you required.Grade:G30,G43,G70,G80,C100Manufacture Standard:ISO,DIN,BS ... over the world. HSC Type Chain Pulley Block Grade A Chain 20Mn2