Simbi nesimbi sebhizimusi guru reHunan Great Steel Pipe, kugadzira zvigadzirwa zvesimbi zvemhando yepamusoro uye kukosha kwepamusoro uye kunosimudzira mapoka makuru matatu ezvigadzirwa, zvinoti kabhoni simbi, simbi isina tsvina uye yakakosha simbi. Zvigadzirwa zvakananga: pombi yesimbi isina musono, pombi yesimbi, saw simbi nyere, lsaw simbi pombi, casing, tubing, chibooreso pombi, mhango chikamu, pombi Fittings etc ...