A new type of ashless anti-rust agent PN-1 is synthesized.
合成了一种新型的无灰防锈剂PN 1。
The development and application of ashless antiwear hydraulic fluid with high pressure are described.
介绍了无灰高压抗磨液压油的研制过程及在实际应用中的情况。
And the performances of new type ashless dispersant in gasoline engine oil and diesel engine oil were also presented.
介绍了新型无灰分散剂在汽油机油和柴油机油中的使用性能。
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