Prosés produksi utama pipa baja tekanan tinggi: pemanasan billet, tube perforated, extension pipe.-tekanan tinggi pipe baja rolling, pipe sizing, ngurangan pipe, cooling jeung pagawean baja atawa bisa disebutkeun dipanaskeun perforated baja si cikal panas digulung pickling semprot sirah motong tiis digambar mobil ...
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