Flanges 相关的文章
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EN 1092-1 Flanges（PDF）下载
Flange type (typ) as in EN 1092-1 01 (Plate [slip-on] flanges for welding) 13 (Hubbed thre…
Flange type (typ) as in EN 1092-1 01 (Plate [slip-on] flanges for welding) 13 (Hubbed thre…
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