2012년 7월 27일

ASTM A36 and KS, JIS SS400 — Dual Specification

ASTM A36 and  KS, JIS  SS400 — Dual Specification 스틸맥스(주)가 쓰는 철강 Story   A36 은 ASTM (American Society for Testing and Materials : 미국재료시험학회 : […]
ASTM A36 and  KS, JIS  SS400 — Dual Specification
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