h44h-16/25/64/100铸钢旋启式止回阀
碳钢铸钢旋启式止回阀h44h16c25c翻板式摆板式逆止阀单向阀加厚
h44h16c铸钢卧式止逆阀单向阀法兰升降式止回阀法兰止回阀
旋启式止回阀h44h
图片内容是:h44h止回阀图片
h44h旋启式止回阀美标国标德标日标
厂家直销三科阀门h44h旋启式止回阀
h44h/w国标旋启式止回阀 通径:dn50～800 范围:pn1.6~16.0mpa
h44h-16c/25c铸钢旋启式法兰止回阀逆止阀dn15 20 25 32 40 50 65
热销供应旋启式止回阀h44h-16c 法兰止回阀 不锈钢止回阀 热销