(1) the implementation of pre inspection have not yet traded goods, if stated in the credit contract, the new test project, will be re sampling in export replacement, repair experience related projects.
(2) pre inspection batch sometimes different from export batch, is going to happen and batch or batch of export phenomenon, some commodity export replacement, such as not using the original test result data, will be re inspection or recheck.
(3) the pre examination of goods such as more than the validity period for inspection, import and export commodity inspection original replacement voucher is invalid, but also re inspection, increasing the repeated labor.
Pre export inspection is a flexible approach to the entry-exit inspection and quarantine institutions to needle bearing hk 3250 facilitate the foreign trade, has the following advantages:

(1) pre inspection of goods found unqualified, can have plenty of time to rework finishing, or otherwise replacement, to avoid the export inspection found unqualified, timely export influence.
(2) the origin of needle bearing hk 3250 the entry-exit inspection and quarantine institutions to implement the pre inspection, can make not unqualified factory product, can prevent the unqualified goods transported to the port, causing the backlog and other losses.
(4) certain goods, especially with machine strapping goods, can be pre inspection before packing, avoid or reduce the loss of unpacking.

(5) for some goods have not yet traded, through pre testing, to grasp the actual quality goods business unit, reference pre-test results of needle bearing hk 3250 external transactions, signed the clause in the contract.
(6) some of the items can be pre - test a portion of the goods in the production process, found that the problem can be promptly brought to the production enterprise research and improvement, to avoid a large batch of unqualified loss.