常見例句Even then, seating and gasket faces or buttweld ends can show fine-line cracks that need more upgrading by rewelding and remachining. 即使在這種情況下，閥座和墊圈面或碰焊端可能會顯示需要通過重焊和機加工的細線裂縫。Reducing long radius buttweld elbows shall be kept to a minimum. They may only be used where available space does not allow use of a full-size buttweld elbow and reducer. 應(yīng)盡量少用長徑異徑對焊彎頭。該類彎頭只能用于其有效空間不允許使用足尺寸彎頭及異徑管的地方。Cold-Drawn Buttweld Carbon Steel Mechanical Tubing 冷拉對縫焊碳素鋼機械管Specification for Cold-Drawn Buttweld Carbon Steel Mechanical Tubing 冷拉對縫焊碳素鋼機械管規(guī)范Dimensions - End-to-end dimensions for buttweld, two-way, globe-type, straight pattern control valves 第3部分:尺寸。對接焊的兩向閥,球型閥,直接圖形控制閥的首尾相接尺寸Industrial-process s - Dimensions - End-to-end dimensions for buttweld, two-way, globe-type, straight pattern s 工業(yè)過程控制閥.;尺寸 返回 buttweld