Izinga lokushisa eliphansi le-carbon steel pipe iyinsimbi yesakhiwo se-carbon, izinga lokushisa eliphansi le-carbon steel pipe lisebenza esimweni sokushisa esiphansi, esingamelana nomthelela othile wokushisa ophansi, ukusebenza kwemishini kungcono, futhi intengo iphansi, umthombo obanzi, osetshenziswa kabanzi. . Okukhulu kakhulu thina...
Funda kabanzi