A269 npog ob qho tib si welded thiab seamless stainless hlau rau kev siv dav dav lossis uas yuav tsum tau muaj kev tiv thaiv corrosion thiab kev siv qis lossis siab kub xws li 304L, 316L thiab 321. A249 yog welded nkaus xwb thiab siv rau cov ntawv thov kub (boiler, kub exchanger).
Post lub sij hawm: Mar-04-2019