Series 26F sanitary air operated pinch valve has a stainless steel body and a one-piece food grade rubber sleeve ideal for sanitary environments.是什么意思_Series 26F sanitary air operated pinch valve has a stainless steel body and a one-piece food grade rubber sleeve ideal for sanitary environments.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句