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本帖最后由 shiyulin2 于 2024-3-5 09:04 编辑
NAS1638-2011
CLEANLINESS REQUIREMENTS OF PARTS
USED IN HYDRAULIC SYSTEMS
ISO4406-1999
Hydraulic fluid power- Fluids-Method for coding the level of contamination by solid particles
NAS 1638-2011.pdf
(39.06 KB, 下载次数: 46, 售价: 2 金币)
ISO 4406-1999.pdf
(295.57 KB, 下载次数: 43, 售价: 2 金币)
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