硕广9207对焊弯头售后保障

河北硕广管道生产对焊弯头，沧州
对焊弯头的材质划分
碳钢: ASTM/ASME A234 WPB、WPC

合金: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911、15Mo3 15CrMoV、 35CrMoV弯头

不锈钢:ASTM/ASME A403 WP 304-304L-304H-304LN-304N
分类
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
法兰
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

低温钢:ASTM/ASME A402 WPL3-WPL 6

钢: ASTM/ASME A860 WPHY 42-46-52-60-65-70