欧美手机天堂网七海久代在线播放,日本精品不卡电影,亚洲无码高清在线视频,国产在线高清无码不卡

靜海閥門嚴(yán)格按照GB、JB、美標(biāo)API、ANSI、英國BS、德標(biāo) DIN、法國NF、日本JIS、JPI標(biāo)準(zhǔn)生產(chǎn)，適用于石油、化工、冶金、電力、建筑、熱力、給排水、水處理、市政工程、制藥、造紙、食品、鐵路、礦山、消防等行業(yè)。

Jinghai valves are produced in strict accordance with GB, JB, American standard API, ANSI, British BS, German standard DIN, French NF, Japanese JIS, JPI standards, suitable for petroleum, chemical, metallurgy, electric power, construction, thermal power, water supply and drainage, water treatment , Municipal engineering, pharmaceutical, papermaking, food, railway, mining, fire protection and other industries.