赛睿耳机驱动无法识别:Can you send me a proforma for 50 units of each:以下是型号.这是什么意思啊?

Can you send me a proforma for 50 units of each:以下是型号.这是什么意思啊? Hao do you think good PR can benefit a corporate Can you bring a pencil ( ) me? can you do me a favor ??? can you do me a favor ??? Can you send me that stamp back to me for my (c ). can you show me a pic from you?是什么意思啊? can you help me ? can you tell me can you help me?