Mapaipi amapangidwa molingana ndi ASME B16.11, MSS-SP-79\83\95\97, ndi BS3799. Zida zopangira zida zimagwiritsidwa ntchito popanga kulumikizana, pakati pa chitoliro chapaipi ndi mapaipi. Amaperekedwa kuti azigwiritsidwa ntchito mosiyanasiyana, monga mankhwala, petrochemical, magetsi opangira ...
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