Durability Xaiv Jis G3114 SMA400aw Weathering Hlau

 

 

 

 

 

 

JIS G311 SMA400AW weathering hlau

 

 

 

 

 

JIS G311 SMA400AW Sawv cev rau kev lag luam ua kom zoo ntawm cov huab cua ua kom zoo thaum tswj cov khoom siv tau yooj yim. Qhov "" kev faib tawm ntawm "kev faib tawm cov txheej txheem kev ua haujlwm ntawm cov qauv kev ua haujlwm, thaum lub sijhawm" W "qhia txog cov kev ua haujlwm ntawm cov khoom siv hluav taws xob. Qhov no steel ua tiav nws qhov kev ua tau zoo los ntawm kev siv tshuaj lom neeg suav nrog cov tooj liab (0.30-0.35%), thiab phosphorus (0.30-0.300%), thiab phosphorus tiv thaiv patin

 

 

 

 

 

 

 

 

 

 

 

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