厂家直销上海斯米克（飞机牌）S 111/ECoCr-A硬面堆焊焊丝
S 111
C1 Cr29 W5 Co Rem.
HRc38-47. Resistance to wear and corrosion at high-temperature. Hardfacing of high temperature and pressure valve. HRc38-47，高温下耐磨、耐蚀。堆焊高温高压阀门
