中华人民共和国航空工业部部标准 HB3993-87 球面支承帽 代替 65 SRI2 H- 10 0h2 分类代号:W9235 标记:W923505 1材料:T8A按GB1298-77 2热处理、HRC53~58. 了技术条件按HB1770-87 碗空二部187-04一08 发布 i87-07-01实湾 ...
HB 3993-1987 球面支承帽.pdf
中华人民共和国航空工业部部标准 HB3993-87 球面支承帽 代替 65 SRI2 H- 10 0h2 分类代号:W9235 标记:W923505 1材料:T8A按GB1298-77 2热处理、HRC53~58. 了技术条件按HB1770-87 碗空二部187-04一08 发布 i87-07-01实湾 ...
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