First stage product quality planning of diesel engine piston ring.
负责柴油机新产品质量先期策划。
The Suggestions on further performance improvement of 280 engine piston are given.
提出了进一步提高280活塞性能的建议。
Establish and perfect the gasoline engine piston ring design specifications and process.
负责建立并完善公司柴油机产品设计规范和流程。
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