How to Measure the Quality of Foaming Agents?
There are mainly three indicators: foamability, foam toughness, and bleeding, to measure the quality of foaming agents.
There are mainly three indicators: foamability, foam toughness, and bleeding, to measure the quality of foaming agents.
Gazprom recently said it had completely suspended gas supplies to Bulgarian Gas company and Polish Oil and Gas Company (PGNiG) because it was not being paid in rubles. Russia said it would resume gas supplies after it agreed to pay for them in ruble
Hose pump gets rid of the operation mode of traditional pump impeller and shaft seal, and has advantages in the transportation of media with high viscosity, high corrosivity, and large fluid impurities. It is a completely different principle from tra
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