1. Water can corrode the pump , so water-borne substances are forbidden to use the pump for vacuuming and the pump for vacuuming.
2. Contains a lot of solvent substances First remove most of the solvent in the oven, and then use a vacuum pump.
3. Use the vacuum pump in…
2. Contains a lot of solvent substances First remove most of the solvent in the oven, and then use a vacuum pump.
3. Use the vacuum pump in…
Tengzhou City, Shandong Province, small and medium-sized machine tool industry cluster is listed as the province's first major support for SME industrial clusters, and received 6 million yuan of provincial-level special support funds.
According …
I. Test conditions The four material labels and chemical components used in the test are 25kW well gas nitriding furnaces equipped with KRN-3 microcomputer nitrogen potential control cabinet. The nitriding medium is NH3. By adjusting the ammonia supply, the ammonia decomposition rate can b…
From October 18th to 19th, the highest-level academic conference in the field of crop science in China, the annual meeting of the Chinese Crop Society Academic Conference was held in Chengdu. National experts and scholars in this field gathered here. With this…