The seal principle and its constriction of H-type complex gasket were introduced, as compared with wave-toothed compound gasket and spiral wound gasket.
介绍了H型复合垫片的密封机理和结构，并且与波齿垫片和缠绕垫片的密封性能进行了比较。
By analyzing for the flange leakage on a heavy oil catalytic pyrolysis unit, the writer put forward a treatment method, i. e. to replace old asbestos gasket with a compound corrugated gasket.
通过对重油催化裂化装置中法兰泄漏原因的分析，提出了处理方法：将原石棉密封垫片改为波齿复合密封垫片。
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