Login  |  Register

标准钢号对照 - 东册管业(上海)有限公司 版权所有

ASTM A283 ASTM A573 Gr.C (ÓS205MPa) Gr1.58 (ÓS220MPa) JIS G3101 JIS G3131 SPHD (ÓS205MPa) SPHC (ÓS215MPa) BS 970-1 040A12 S185 (ÓS215MPa) ...

Alexa Traffic