... size:1/2"-80" pressure: class150/300/600/900/1500/2500 materail: cs,ss ANSI B16.5 Standard flange OUR INTRODUCTION ... welding, threaded, lap-joint Pressure: 150#, 300#, 600#,900#,1500#, 2500# Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160 ... : seaworthy plywood case, wooden pallet ANSI STANDARD FLANGE CLASS150/300/2500