Umbhobho wentsimbi engenamthungo we-20G luhlobo oluqhelekileyo lombhobho wentsimbi engenamthungo. Igama elithi "20G" egameni layo limele izinto zombhobho wentsimbi, kwaye elithi "engenamthungo" limele inkqubo yokuvelisa. Le ntsimbi idla ngokwenziwa ngentsimbi yekhabhoni, intsimbi ye-alloy, njl.njl., kwaye ineempawu ezilungileyo zoomatshini kunye nokudityaniswa. Iimpawu eziphambili zombhobho wentsimbi engenamthungo we-20G kukumelana nobushushu obuphezulu, ukumelana nokugqwala, amandla aphezulu okucinezelwa, njl.njl. Ke ngoko, isetyenziswa kakhulu kwi-petroleum, igesi yendalo, ishishini leekhemikhali, amandla ombane, ulwakhiwo kunye neminye imimandla.

Imigangatho yokusetyenziswa:
1. Umbhobho wentsimbi ongenamthungo wesakhiwo:GB8162-2018
2. Umbhobho wentsimbi ongenamthungo wokuhambisa ulwelo: GB8163-2018
3. Umbhobho wentsimbi ongenamthungo webhoyila yetyhubhu yebhoyila yoxinzelelo oluphantsi noluphakathi:GB3087-2018
4. Umbhobho ongenamthungo webhoyila oxineneyo kakhulu:GB5310-2018
5. Umbhobho wesinyithi ongenamthungo oxinzelelweyo ophezulu wezixhobo zesichumiso:GB6479-2018
6. Umbhobho wentsimbi ongenamthungo wokuqhekeka kwepetroliyam:GB9948-2018