Dear Sir,
Many thanks for your email and kind interesting in our products.
Our company is the leading manufacture in XXXXXX industry. We are specializing in XXXX products with N years history.
....... 公司一些基本信息,如年产量,销售量,主要客户等。
Looking forward to the further cooperation soon.
Best regards
XXX
是对方刚下了订单,写信过去表示收到?还是发了货,还是交易完成,多给点信息吧。
the customer bought a big quantity of the electric equipment