MATERIAL：ASTM/ASME SA234-WPB,WPC,WPL6,WP12,WP11,WP5,WP22；SA403-WP304,WP304L,WP316, WP316L.
 SIZE：1/2"-48",DN15-DN1200
 PRESSURE：Sch5-Sch160,XXS
 STANDARDS： ISO. ANSI. JIS. DIN GB/T12459,GB/T13401,ASME B16.9,SH3408
 SH3409,HG/T21635,HG/T21631,SY/T0501                                  
 USE： Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc