( تهیه _استاندارد _ASTM _ درخواستی شما_2017
ASTM _شامل :
A0742_A0742M-Specification for
Steel Sheet, Metallic Coated and Polymer Precoated ... for Corrugated
Steel Pipe
A0762_A0762M-Specification for Corrugated ...
Steel Pipe, Polymer Precoated for Sewers and Drains
A1019_A1019M-Specification ... for Closed Rib
Steel Pipe with Diameter of 36 in. \[900 mm\] ... and Definitions for Mechanical Testing of Structural
Steel
A373-Specification for Structural
Steel ...