Per law of Customs, the gross weight should be identical between HAWB, MAWB and manifest.

按照海关法，总重应与分空运单，主空运单和载货单一致。

Carrier shall submit the Manifest and the attached papers and documents to the Customs. Customs shall deal with the formalities to cancel the record after verification for the means of transport.

承运人向海关交验进境汽车载货清单和随附单证，由海关办理运输工具核销手续。