FSB series fluoroplastic alloy pump is composed of pump body, impeller, back cover, seal, support, pump shaft, bearing, coupling, fasten bolt, nut and base plate.是什么意思_FSB series fluoroplastic alloy pump is composed of pump body, impeller, back cover, seal, support, pump shaft, bearing, coupling, fasten bolt, nut and base plate.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句