Kunezinhlobo ezintathu ze-high-pressure flange sealing surface: indawo yokuvalwa kwendiza, efanelekile ukucindezela okuphansi, izikhathi zemidiya ezingenabuthi; I-Concave ne-convex yokubekwa uphawu kwendawo, elungele izikhathi zengcindezi ephakeme kancane; I-Tenon groove sealing surface, ilungele ukuvutha, ukuqhuma, i-m enobuthi...
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