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burkert寶德 2030兩位兩通膜片閥，2030型先導控制膜片閥帶活塞執(zhí)行機構 密封膜片，回路功能A。The type 2030 pilot control with piston diaphragm valve actuatorsSeal diaphragm, A circuit function.

burkert寶德 3230兩位兩通膜片閥。適用于工藝過程中污染的介質和廢水處理。Suitable for medium and waste water treatment process in the process of pollution.