v-weld with gaand back strip的意思|示意
美 / /
英 / /
v型焊接，带背带
v-weld with gaand back strip的网络常见释义
形坡口无间隙焊接 形坡口无间隙焊接 v-weld with gaand back strip; v-weld with gap and back strip v 无间隙对接焊缝 unspaced butted weld .