Full set of H-link, side link, pins and bushings for KOBELCO SK350 from Tianjin Longdong Factory. Made of thickened Q355 manganese steel and 42CrMo alloy steel with CNC machining and automatic welding, standard and heavy mining versions fit OEM size directly for quarry & heavy earthwork. Customized production per customer drawings and OEM available at favorable factory price, welcome your inquiry.