Chitoliro chopanda chitsulo cha 20G ndi mtundu wamba wa chitoliro chachitsulo chosasunthika. "20G" m'dzina lake imayimira zinthu za chitoliro chachitsulo, ndipo "zopanda pake" zimayimira kupanga. Chitsulo ichi nthawi zambiri chimapangidwa ndi chitsulo cha carbon, aloyi zitsulo, ndi zina zotero, ndipo chimakhala ndi makina abwino komanso kutsekemera. Makhalidwe akuluakulu a chitoliro chopanda chitsulo cha 20G ndi kukana kutentha kwakukulu, kukana kwa dzimbiri, mphamvu zopondereza, etc. Choncho, amagwiritsidwa ntchito kwambiri mu mafuta, gasi, mafakitale a mankhwala, mphamvu zamagetsi, zomangamanga ndi zina.

Miyezo yoyendetsera:
1. Chitoliro chachitsulo chosasunthika pamapangidwe:GB8162-2018
2. Chitoliro chopanda chitsulo chotumizira madzimadzi: GB8163-2018
3. Chitoliro chachitsulo chosasunthika cha boiler ya chubu yotsika komanso yapakatikati:GB3087-2018
4. Chitoliro chapamwamba chopanda msoko cha boiler:GB5310-2018
5. Chitoliro chachitsulo chosasunthika chokwera kwambiri pazida za feteleza:GB6479-2018
6. Chitoliro chosasunthika chachitsulo chong'amba mafuta:GB9948-2018