... 承插焊法兰 socket welding flanges 螺纹法兰 threaded flanges 松套法兰 lap joint flanges ...
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flanged pipe with threaded flanges 螺纹法兰管
threaded flanges
螺纹法兰
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Tubes and pipes of the foregoing cross-sections may be polished, coated, bent, threaded, drilled, waisted, expanded, cone-shaped or fitted with flanges, collars or rings.
上述截面的管子可经抛光、涂层、弯曲、攻丝、钻孔、缩腰、胀口、成锥形或装法兰、颈圈或套环。
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