PTC hot air oven dryer is suitable for drying different kinds of products at medium and low 。。。
The air energy device consists of compressor, electronic expansion valve, drying filter, four-way...
The air energy device consists of compressor, electronic expansion valve, drying filter, four-way 。。。
Microwave is a kind of electromagnetic wave with very short wavelength 。。。
The 25th China Yangling Agricultural High Association, which lasted for five days, ended in Shaanxi on November 9。 In the。。。
Bid winning notice 11。10-11 is the occasion of the National Carnival Shopping Festival。 Xian Sunda Environmental Protecti。。。
Poverty alleviation and poverty alleviation are the fine traditions of the Chinese nation. It is our common responsibilit...