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Valavu yokweza pulagi
Valavu ya Pulagi Yokweza
BB-BG-QS&Y, Chingwe chamanja, giya la bevel, chitoliro cholumikizira
Kapangidwe koyenera ka API599, API6D
Maso ndi maso ASME B16.10
Flange itha ASME B16.5
Mayeso ndi Kuyang'anira API598.API6D
NORTECHis imodzi mwa mayiko otsogola ku ChinaValavu yokweza pulagiWopanga & Wopereka.