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Boiler Tube A179 A192
ASTM A179 ——-Txoj Cai ntawm American Society for Testing & Materials
yog siv rau tubed cua kub exchanger, condenser thiab zoo xws li cov cua sov conveying equipments; Main Qib: A179
ASTM A192 ——-Txoj kev ntawm American Society rau Kev Ntsuas & Cov Khoom Siv yog siv rau kev kub siab min. Phab ntsa tuab seamless carbon steel Boiler thiab Superheater raj; Qib Qib: A192
