Can be used for petroleum, metallurgy, power generation, chemical, fertilizer, paper, sewage treatment, and other industrial valve, pump seal.是什么意思_Can be used for petroleum, metallurgy, power generation, chemical, fertilizer, paper, sewage treatment, and other industrial valve, pump seal.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句