Application: Used to weld workpieces. Diffirent with Rivet welding surface plate,the working surface is planar or T-slot,but not has blowhole. Material:Made from closed grained cast iron of HT 200-300 . Hardness between 170-240 BHN Spercification: 100mm×100mm-3000mm×6000mm(we can produce and process these products according to the customers’ drawings or requirements) contact person :Sophia Han tel:86-0317-4505966 msn:zhongbozg@msn.com