hd babes xxx,Hydrocarbon refrigerants are mainly two advantages of energy saving and environmental protection.
porn viodes,Energy saving: Air conditioners using hydrocarbon refrigerants can save 15% to 35% of energy compared to air conditioners using R134 hc refrigerant and R22 hc refrigerant. It belongs to the natural working medium, so the air pollution, the ozone layer is not damaged and the greenhouse effect is almost zero.
sex se vedio,For example, hc R290 refrigerant, also known as propane, is one of the natural refrigerants. It has good thermal properties and low prices. In addition, the molecule of R290 does not contain chlorine atoms, so the ODP value is zero and there is no damage to the ozone layer.
Icetop's main products include hc refrigerant series. Refrigerant gas is in line with the stringent quality standards. The price is more favorable than other products in the industry and the cost performance is relatively high.,www porn kom