J41 F46衬氟截止阀

J941J-16.10型 J941Fs-16.10型 J641J-16.10型 J641Fs-16.10型 J41J-16.10型 J41Fs-16.10型
设计与制造按Design and manufacture: GB12239
结构长度按Structure length: GB12221
法兰连接尺寸按Flange connection size: HG20592
试验.与检验按Test and inspection: GB/T13927;