Isakoshi yinkari ikozwe muri PVC, PE, PP, HDEP na ABS mubyiciro byubuvuzi.Igizwe nisakoshi, ihuza umuyoboro, umuyoboro wa taper, isohoka hepfo hamwe nigitoki.
1. Hamwe na valve idasubira inyuma kugirango wirinde inyuma yinkari, ongera umutekano wumurwayi
2. Tube ifite ubuso bworoshye kandi irwanya kink