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Nowadays, the technology is developed, and the network is generally ac...
When a fully synthetic cutting fluid is used, a large amount of foam i...
On May 30, Ms. Li from Defond's sales department received a call from ...
On May 26th, Defond sold Ms. Dong, a Guangzhou phone, who consulted th...
Why use synthetic rubber defoamers to save 73 million companies annual...