I-ERW carbon steel pipe vs spiral pipe: Okokuqala, umehluko phakathi kwenqubo yokukhiqiza i-ERW carbon steel pipe iyikhoyili egoqiwe eshisayo ngokusebenzisa ukwakhiwa komqulu oqhubekayo, ukusetshenziswa komphumela wesikhumba wamanje we-high-frequency kanye nemiphumela eseduze, ukuze umkhawulo we- i-coil heat fusion, ingcindezi ku-t...
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