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Widely used as popular category of pipe fittings
Used to mechanically connect two pipes together
Also used to mechanically connect pipe to tee, valve, choke or any other piece of equipment
 ANSI B16.5/MSS.SP 44, JIS B2220, DIN, BS NORMS, ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS.JIS, JIS B 2220 and JIS B 2220-2004
Carbon steel: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
Stainless steel: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8
Alloy steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22 and St45.8
Class 150, 300, 600, 900, 1500 and 2500
PN 6, PN 10, PN16, PN25, PN40 and PN64
JIS 5K, 10K, 16K and 20K
Threaded flange: 1/2 to 80 inches or DN10 to DN150
Quality control:
Shapes: round, square and rectangular or ring, plate to form rim at end of pipe when fastened to pipe
Surface:Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer, hot-dipped Galvanized, electrical galvanized
Connection:Welding, Threaded
Manufacture process: forged, ring rolled and heat treatment
Packing: Wooden case
Test: Chemical Component Analysis, Mechanical Properties;Technical Properties; 
Mill Test Certificate: EN 10204/3.1 A/B

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