Usetyenziso kunye neempawu:
> Ilungele ngokukodwa imathiriyeli yokuhanjiswa kwindawo enokutsha kwimigodi yamalahle ephantsi komhlaba.
> Ilaphu linamandla aphakamileyo kwaye liphantsi ngokobude kwaye isidumbu esikhanyayo sinomothuko, sichasa ukukrazuka kwaye silungile kubuchule bomkhombe.
Ibhanti le-PVC elilukiweyo eliLiqinayo:
> Ilungele ukusetyenziswa kwiimeko ezomileyo kwi-engile engaphantsi kwe-16 degrees.
> Ubukhulu bekhava bunokuba ukusuka kwi-0.5 ukuya kwi-4 mm.
Uhlobo lwe-PVG olugqunywe yiNitrile:
> Ifanele izicelo kwi-angle ye-slope engaphantsi kwama-degrees angama-20, kwaye ubukhulu bunokuba ngu-1 ukuya kwi-8 mm.
> Ukuxhathisa kubumanzi, ukutyibilika, ubushushu obuphantsi kunye nokudinwa
Imigangatho: MT914, BS3289 kunye neHG2805
