Proses produksi utama pipa baja tekanan tinggi: pemanasan billet, tabung perforated, extension pipa.Rolling pipa baja tekanan tinggi, ukuran pipa, pipa pengurangan, pendinginan lan baja finishing utawa bisa diarani digawe panas baja perforated embrio hot rolled pickling semprotan sirah Cut kadhemen digambar mobil ...
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