紧急!Titanium-Cu和COPPER ALLOY有什么区别

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• 英语翻译working for Chawla group of companies based in India.We understand that your company manufactures copper pipes used in installations of split airconditioners.Our concern has a monthly requirement of about 1000 metres per month which includes sizes of half,quarter,58,38.We are planing a business tour to china in the next week and would also like to visit your factory and office.Our representative in china will let you know about our schedule.Please