WJ41H-16C/P德标波纹管截止阀

JY41W-25P广东氧气截止阀

J41H-16C铸钢蒸汽法兰截止阀

J11W/H-16P内螺纹截止阀上海精工

H76X/H-10/16对夹式蝶形双瓣止回阀

H74H/W-10/16C/P对夹圆片式薄型止回阀

H71W/H72W-16P对夹式升降止回阀

H44H-16C旋启式法兰止回阀

HC42X-16常熟*式止回阀

H42H-16C立式法兰止回阀

H41H-16C广州升降式蒸汽止回阀

H14W-16P/T内螺纹止回阀