名称 NAME:对焊补强圈 BW PAD
 材质 MATERIAL：A234-WPB.A420-WPL6.A234-WP5,A234-WP9,A234-WP11,A234-WP12,A234-WP91. A403-WP304.A403-WP304L.A403-WP316.A403-WP316L.A860-WPHY42,A860-WPHY46,A860-WPHY52,A860-WPHY60,A860-WPHY65,A860-WPHY70,A860-WPHY80,API 5L-A25,API 5L-A,API 5L-B,API 5L-X42,API 5L-X46,API 5L-X52,API 5L-X56,API 5L-X60,API 5L-X65,API 5L-X70,API 5L-X80
 尺寸 SIZE：1/2"-48",DN15-DN1200
  压力 PRESSURE：Sch5-Sch160,STD,XS,XXS,PN4.0,PN8.0,PN10.0,PN16.0
标准 STANDARDS： ISO. ANSI. JIS. DIN GB/T12459,GB/T13401,ASME B16.9,SH3408 SH3409,HG/T21635,HG/T21631,SY/T0501,MSS SP-97                             
应用 USE： Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc.