Q: Dab tsi yog qhov nominal loj ntawm carbon steel yeeb nkab?
AQhov ntau thiab tsawg: 1/2", 3/4", 1", 2", 3", 4", 6", 8", 10", 12", txog 48" thiab loj dua.
Q: SCH sawv cev rau dab tsi hauv cov yeeb nkab?
A: SCH txhais tau tias Teem caij, sawv cev rau phab ntsa thickness series (piv txwv li, SCH40, SCH80, SCH160).
Q: Dab tsi yog tuab: SCH40 lossis SCH80?
A: SCH80 muaj phab ntsa tuab thiab siab dua qhov ntsuas siab dua SCH40.
Q: ERW yeeb nkab yog dab tsi?
A: ERW=Hluav taws xob Resistance Welded yeeb nkab, ua los ntawm txias forming thiab siab - zaus kuj welding.
Q: LSAW yeeb nkab yog dab tsi?
A: LSAW=Longitudinal Submerged Arc Welded yeeb nkab, siv rau loj - txoj kab uas hla, siab - cov kav dej siab.
