Z 508斯米克焊条 EZNiCu-1 Copper nickel, good machinability and bad crack resistance. Repair welding of sand hole and gray cast iron machined surface subject to no load. 镍铜,易加工,但抗裂性较差。不受力的灰铸铁加工面及砂眼补焊 ENiCu-B PP-R807耐热钢焊条 PP-TIG-J50电力焊丝 德国蒂森WB36焊条 ***51***焊条 ARCFCW9066耐磨焊丝 HB-YD467耐磨焊丝