Peb cov couplings qhov ntau ntawm DN40 txog DN300, suav nrog hom A coupling, hom CHA coupling, hom E txuas, clamp, tuav dab tshos thiab lwm yam haum rau hubless cam khwb cia hlau yeeb nkab.

Peb cov couplings qhov ntau ntawm DN40 txog DN300, suav nrog hom A coupling, hom CHA coupling, hom E txuas, clamp, tuav dab tshos thiab lwm yam haum rau hubless cam khwb cia hlau yeeb nkab.