Izinto eziluhlaza: I-polypropylene eguquliweyo isetyenziselwa ukuvelisa ityhubhu yangaphakathi ngenkqubo ye-extrusion, kwaye izongezo eziyimfuneko zingongezwa.Ityhubhu yangaphandle yenziwe ngefiber yeglasi kunye neemveliso zayo.
Indlela yokudibanisa: i-socket kunye ne-socket.
Umbala wemveliso: umaleko wangaphandle ngumbala wendalo okanye obomvu, umaleko wangaphakathi ubomvu-orenji.