磨药芯高硬度耐磨焊丝YD998 D707 YD888 YD256 YD212超耐碳化钨堆焊耐焊丝 ¥43.00 宏源YD212堆焊耐磨焊丝 YD998***碳化钨耐磨药芯焊丝 焊条 ¥28.00 碳化钨高合金超耐磨药芯堆焊焊丝yd998/YD707/YD212特高耐磨高硬 ¥28.00 YD688耐磨焊丝 YD788 YD888 YD998高硬度 耐磨损规格1.6mm ¥22.00 YD998高硬度碳化钨合金堆焊耐磨焊丝 ¥25.00 贵州毕节YD999耐磨焊丝YD998药芯堆焊气保焊规格1.2mm1.6mm高硬度耐冲击怎么样 ¥20.00