Qhov (socket) Vuam Flanges

Lub qhov (socket) vuam flange yog hais txog lub flange uas tau muab tso rau hauv lub nplhaib flange kauj ruam ntawm qhov kawg ntawm cov yeeb nkab thiab welded rau qhov kawg thiab sab nraud ntawm cov yeeb nkab. Muaj ob hom nrog lub caj dab thiab tsis muaj