Two eco vat dyes with low heavy metal content are launched,technical indicators and color fastness of Vat Yellow GCL and Vat Blue RC are introduced.是什么意思_Two eco vat dyes with low heavy metal content are launched,technical indicators and color fastness of Vat Yellow GCL and Vat Blue RC are introduced.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句