single V groove with root face

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1.	Y形坡口焊接专业英... ... V形坡口 single V groove Y形坡口 single V groove with root face 双Y形坡口 double Vgroove with root face ... www.hanjie.com
2.	带钝边V型坡口化工和机械英文字典 - -... ... 带钝边V型坡口 single V groove with root face 带钝边X型坡口 double V groove with root face ... bbs.myptfe.com
3.	带钝边V形坡口 ... 1315 双面坡口 double groove 1318 带钝边V形坡口 single V groove with root face 1319 单边V形坡口 single bevel groove ... blog.sina.com.cn