Dab tsi yog qhov sib txawv ntawm GB / T 8163 thiab GB / T 3087 tus qauv?
GB / T 8163 (Cov kav dej uas tsis muaj dab tsi rau cov khoom siv siab kub (feem ntau cov ntsiab lus ntawm lub zog) 353 Qib yuav tsum tau lees tias . boiler cov leeg yuav tsum tau kuaj rau dej siab ib los ntawm ib.
Yuav ua li cas xaiv ntawm Astm A106 thiab A53 cov qauv?
A106 Qib B yog siv rau cov pa roj carbon ntau (hom charvanized (hom chaw chardy (hom e) {}} tus nqi ntawm A106 Seamless kav yog 30% -50% siab dua li ntawm ib53 welded kav. Petrochemical cov haujlwm muab tau ua ntej rau 106.
Dab tsi yog qhov sib txawv ntawm en 10210 thiab EN 10219 cov qauv?
En 10210 yog siv rau cov hlau kub-tsim hollow (xws li square rolled lub zog ({{ 10219 tsom rau kev ua kev ua lag luam {{11} Cov qauv no tsuas yog siv hauv European tsev cov qauv hlau.
Dab tsi yog qhov tshwj xeeb xav tau ntawm API 5ct rau cov kav dej hlau?
Casing thiab roj kav tau muab faib ua 10 tus lej ntawm N80) EQUCTION}}} Txoj Kev Nyuaj Siab Lub cev (Ppt) API monograms thiab traceable rau cov cub hluav taws xob ntawm cov steel nroj tsuag}}} {} Tau txais daim ntawv pov thawj API.
Yuav ua li cas kom nkag siab txog Stkm series ntawm Japanese tus qauv JIS G3445?
Stkm11a (Tsawg Cov Hlau Hlau) yog siv rau cov neeg kho tshuab cov qauv zoo nkauj "C"} {} {} { Stkm18a≈a {10 {}} Japanese Automotive cov khoom siv tes feem ntau yuav tsum tau JIS txheem hlau kav hlau.
