During the test of equipment v-j20 in our factory, the thickness of M1 manhole cover drawing is 8mm, In the manufacturing process, considering the possible leakage, our company actually used 12mm thick embryoid material to process to the thickness of 10 mm. At present, there is still a slight leakage found in the test. After discussion by our company's technical department, we are purchasing ePTFE gasket (the original drawing requires the use of PTFE gasket) for test, and the new gasket is expected to arrive at No. 10 in the purchase.<br>
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