1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing # I/ F; u# @' f ' p A3 C# W# D5 s! M- b2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes ' ?8 C& I$ m7 {( e4 ~! p! b5 ?* ^- Q
3. A S T M A501 - 07 Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing
1. A S T M A 270 Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. 8 y' r; n$ F8 g* ]1 O: E2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 8 D b, b/ V8 [, e' y1 P1 _3. A S T M A269－2007 普通设备用无缝和焊接奥氏体不锈钢管标准规范
1. A S T M A 270 Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. _% q7 ^ T" T0 q
2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 3 w3 M( v) X E, C- p% g: ?3. ...9 s( Q, l( B% v8 K p1 k
dljdw 发表于 2011-12-15 16:44 http://www.3dportal.cn/discuz/images/common/back.gif
有缝不锈钢方管： ' }6 |, H. ~, X# G: }' ?) I& I( ~4 mA S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing 8 {2 J: k! a/ |5 u7 `' d无缝不锈钢方管： A+ D9 P& z* P( F7 J/ M& P
A S T M A511 / A511M - 11 Standard Specification for Seamless Stainless Steel Mechanical Tubing
发表于 2011-11-24 08:36:59
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