One of our customers has been using UPE (Unsaturated Polyester Resin) to make tent pole with glass roving (mainly E-glass) amount 2000MT in a year.是什么意思_One of our customers has been using UPE (Unsaturated Polyester Resin) to make tent pole with glass roving (mainly E-glass) amount 2000MT in a year.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句