Air Conditional

Practical documents on air conditioning engineering, full-time air conditioning
+Basic cold
+ Model set of samples of cold components
+ Model of spread out refrigeration system
+ Refrigerator spread model
+ Direct refrigerator spread model
+ Model of ceiling mounted air conditioner
+ Model of air conditioner spreader
+ The model of the vertical cabinet air conditioner
Model of central air conditioning system
+ Model of ice machine
+ Freezer model
+Fridge model
+ Cold storage documents
+Ear material