乳妓h军妓调教hh文,日本大乳av片在线观看,韩国19禁a片在线观看,青春期乳房一抓捏里面有硬块

Before choosing a gas mold temperature machine and an electric heating mold temperature machine, we need to understand the advantages and disadvantages of these two products, and we need to analyze and compare

1. The gas mold temperature machine uses clean natural gas as the energy source, without pollution, but the overall heat exchange efficiency is not high and the temperature rise is slow.

2. The gas mold temperature controller has high requirements on the use site. First, it needs to be used in the site where the natural gas pipeline is connected, and secondly, it is large in size and should not be placed. It is not easy to move after connecting the pipeline.

3. Natural gas, as a flammable and explosive gas, also has a certain degree of danger, especially for small and medium-sized enterprises. Improper management can easily cause danger.

1. The electrothermal mold temperature machine is relatively small in size, easy to use, and has no restrictions on the venue.

2. The electrothermal mold temperature machine only needs one cable to be used, which has strong controllability and high safety. The heat exchange efficiency of the electrothermal mold temperature machine can reach more than 90%. The disadvantage is that the electric heating mold temperature machine with a larger power needs to have enough transformer power. In general industrial power plants, the electric heating mold temperature machine can be used normally.

For relatively mature site conditions and the conditions for using a gas mold temperature machine, the gas mold temperature machine can be selected from the perspective of long-term development. From the perspective of safety and energy saving, it is recommended to use the electric heating mold temperature machine, because the electric heating mold temperature machine is easy to use, the failure rate is low, and the price and operation and maintenance costs are low.