Threaded Pipe Coupling 1:Wherever needed. 2:Small torque of operate. 3:Long service life and easy interall. 4:ISO9001:2000. Forged Steel Threaded Pipe CouplingSize:1/2"-60" or DN15-DN2000Pressure:1500-2500LB or PN100-PN250 or 10K-40KMaterial:Carbon steel,stainless steel,alloy steel etcDesign & Manufacture Std.:ASME B16.5,API 605,MSS SP-44,API 6A,JIS B2220,DIN 2527-2576,UNI 2229,UNI 2253,UNI 6100- ...