Steel tubes, fittings and structural hollow sections. Symbols and definitions of terms for use in product standards
钢管、配件和结构空心型材 产品标准中使用术语的符号和定义

2003-08-28

Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards
钢管、配件和结构空心型材.产品标准中使用术语的符号和定义

2007-03-07

강관 및 관 이음쇠－기호－제2부：정사각형 및 직사각형 중공 단면
钢管和管件规范用符号第2部分:方形和矩形空心型材

2005-12-22

Steel tubes and fittings — Symbols for use in specifications — Part 2: Square and rectangular hollow sections
钢管和管件——规范中使用的符号第2部分:方形和矩形空心型材

1989-11-30