tube socket angular weld的意思|示意
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管座角焊
tube socket angular weld的网络常见释义
管座角焊缝 ...管座角焊缝；氢鼓包；数字超声波探伤 [gap=596]Key words：liquid gas storage tank;butt welding seam;tube socket angular weld;hydrogen drum package;ultrasonic testing ..