Type WN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);Th(Threaded);SW(scket-welding);LF/SE(lapped flange/stub end);LWN(long welding neck);Orifice flange;Reducing flange;API flange;Integral/Compact flange;Spectacle blind,Lind spade and spacer,Paddle blind,Paddle spacer;Orifice plate;Pipe plate,Bleed ring. Size 1/2¡¯¡¯~60¡¯¡¯ Face RF(raised face);FF(flat face);RTJ(ring type joint);TG(tongue and groove face);MFF(male and female face) Class Rating Class150~2500 Standard ANSI: ANSI B16.5,ANSI B16.47,ANSI B16.48,ANSI B16.36,ASME B16.5,API 6B,6BX,ISO7005-1,BS4504-3.1,JPI7S-15-93,NFE29-203,API608-81,ASMEB16.36;NORSOK STANDARD L-005;JIS: JIS B2220; DIN:DIN2630,2631,2632,2633,2634,2635,2636,2637,2638,2501(WN); DN2573,2576,2527,2655,2656(PL);DIN2566(TH)