69精品久久久久久久精品a片,人人妻人人澡人人爽人人精品,少妇荡乳情欲办公室456视频,国产精久久一区二区三区

Product Information: ASHRAE R-410A Replaces R-22 and R-12 It is an HCFC refrigerant that replaces R-12 and R-22, and can be used in fixed positive-displacement air conditioning and refrigeration systems such as mobile refrigerators, beverage machines, vending machines, and supermarket refrigeration systems. Practical applications show that there is no need to change the lubricating oil in many integral and closed-coupled systems.

Applications Positive-displacement systems; medium-low temperature supermarket refrigeration systems; mobile refrigerators.

Advantages Feasible in existing integral and closed-coupled systems using mineral oil; Recommended to use AB lubricating oil for better oil return performance; According to the recommendations and requirements of most compressor manufacturers, when replacing the compressor lubricating oil with AB, 50% to 80% of the existing MO needs to be removed; the refrigerant needs to be reduced by 10% to 25%. Please refer to the replacement guide for details.

Quality Indicators

Cylinder Packaging: Packaging specifications include: 800L, 400L and 11.3kg