famenvalve 发表于 2007-6-27 08:05:23

ASTM A 645/A 645M-99a Standard Specification for Pressure Vessel Plates, Five Pe

ASTM A 645/A 645M-99a Standard Specification for Pressure Vessel Plates, Five Percent Nickel Alloy Steel,Specially Heat Treated
ASTM A 645/A 645M-99a 压力容器用经特殊热处理的5%镍合金钢板的标准规范
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