兑水 发表于 2009-9-15 15:06:40

ASTM B 919-2001 内部增强型焊接铜热交换器规范

B919-01 Standard Specification for Welded Copper Heat Exchanger Tubes With Internal Enhancement
页: [1]
查看完整版本: ASTM B 919-2001 内部增强型焊接铜热交换器规范