â— heating and heating principle: As shown in Figure 1, the heat pump is mainly composed of a ......
Model NO.: 1 ......
Opened today Anshan large and medium sections market prices rise, pass 5 # angle steel production ......
Name of product specification Materials Steel factory / origin Price (yuan/ton) Than yesterda ......
Nowadays, people's life is getting faster and faster. The convenience of taking-out is the first ......
Japan VICTREX MC and Putian Riken Industrial jointly developed the technology for metal coating of ......
China Oil Network News: (Special correspondent Jia Xinqing correspondent Yuan Mei) Recently, ......
According to reports, electrochemiluminescence detection is a new detection method in capill ......
Radish is a one-and two-year-old herb of the genus Brassica, one of the main vegetables of root ......
Model NO.: AF1438-4 ......
Name of product specification Materials Steel factory / origin Price (yuan/ton) Than yesterda ......
The “new ultra-thin high-performance glass fiber insulation material†successful ......