Assistant valve enterprise to win the world
通径:NPS1/4"~4", DN8~100 压力:PN6~63 材质:WCB, CF8, CF8M, CF3M 温度:-29~120℃ 标准:DIN3357, DIN259, DIN2999, DIN3202-M3, DIN3231 介质:Water, Oil, Gas