Kev piav qhia
DX: Thawj tsab ntawv D sawv cev lub tiaj tus hlau rau daim ntawv txias, thiab tsab ntawv thib ob X sawv cev tias lub xeev dov ntawm lub substrate tsis tau teev.
51 ~ 57: Cov lej naj npawb qhia tau steel tus lej theem; tus D tom qab ob tus lej yog tus lej ntawm kub-dip galvanizing. Z txhais tau hais tias txheej yog dawb zinc, ZF txhais tau tias galvanized hlau alloy, AZ txhais tau tias galvanized zinc.
DX51D yog tus txheej txheem European, galvanized nrog 51 steel coil raw cov ntaub ntawv, sib npaug rau SGCC. DX51D yog hais txog qhov khoov thiab tsim qib ntawv galvanized ntawv, qib steel txheej txheem yog 51, nrog cov pa roj carbon tsawg ua cov khoom siv puag.
Sib Luag
Japanese tus qauv SGCC JIS G 3302
Suav Txuj Ci 01 gb2518-2004
Tus qauv German ST02Z
American Standard CS-B ASTM A 653
