我们又收到一些没有MRB的PN类型的wafer，这已经是第三次发生了，请帮忙确认以后能否让他们在发送这些产品之前先把MRB给到我们？
Once again we have received some PN type wafers which are without MRB, and this is the third time it happens. Please kindly help to confirm whether they can?provide us the MRB first before they send us the products in future?
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