roll weld 中文意思是什麼
roll weld
解釋
滾壓焊-
Cold - formed rectangular tube - steel column for architecture structure is formed by roll cold - winding forming process and hf longitudinal seam weld
建築結構用冷彎矩形鋼管是採用冷軋或熱軋鋼帶,經連續輥式冷彎及高頻直縫焊接生產形成的矩形鋼管。 -
Pe compound cavity water heater is made by imported automatic welding equipment and roll - plastic equipment. it realized cavity - weld and cavity - roll - molding
Pe復合內膽熱水器由國外引進的自動焊接設備和滾塑設備生產而成,實現了內膽焊接和內膽滾型。
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