Name: stainless steel flange, weld neck flange with American Standard, American Standard neck flat welding flange, loose flat welding flanges (flanges), with convex and concave surface welded neck flange with neck flat welding flange, ring joint welded flange, raised face flange, reducing pipe flanges, welded flange, flat welding method Lan, socket welding flange, convex surface of the flange, welding neck collar loose flange, flange cover, blind, blind, etc. 8 characters 
 Size: 1 / 2 "~ 240" 
 Pressure rating: 0.6Mpa ~ 32Mpa, 150Lb ~ 2500Lb, PN0.25-PN42.0 
 Material: 20 #, 304,304 L, 321,316,316 L, 310S, (UNS S31500) (3RE60), 
 (UNS S31803/S32205) (SAF2205), (UNS S32750) (SAF2507) and other materials 
 Common Standards: 
 GB: GB/T9112-2000 (GB9113 · 1-2000 ~ GB9123? 4-2000) 
 United States