Good Oxidation Resistance DN200 8 inch PN10 flange back ring carbon steel S235JR backing ring flange
Hot Selling Carbon steel plate flat welding flange steel pipe flange socket weld flange
High Quality DN200 6 inch PN10 flange back ring carbon steel S235JR backing ring flange
ASME B16.5 A105(N) 150Class Lap Joint Loose Carbon Steel Pipe
ASME B16.5 1/2″-24″ ASTM A182 F321 stainless steel Class 150#-2500# flat face lap joint flange loose flange
ASME B16.5 1/2″-24″ ASTM a105 A350 LF2 carbon steel Class 150#-2500# high quality din pn25 lap joint so sw flange
ASME B16.47 ASTM A182 317 Class 150#-2500# NPS26-60 stainless steel 317 flange flange a182-317 317 stainless steel flange
super duplex stainless steel ASTM A182 F53 S32750 forged ring
stainless steel ASTM A182 317L 316L 304L forged ring custom made
stainless steel 904L 1.4539 forged machine bright ring custom
stainless steel 304 forged ring
stainless steel 304 316 316L forged ring