1:Wherever needed. 2:Small torque of operate. 3:Long service life and easy interall. 4:ISO9001:2000 and TS. 5:Price:$10-$100 Stainless Steel Manual Fluid ValveSize:1/2"-48" or DN15-DN1200Pressure:Class150-1500LB or PN16-PN100 or 10K-40KMaterial:F304,F316,F304L,F316L(2)WCB,WCA,WCC,LCB,LCC,WC6,WC9,C5,C12,CF8,CF8M,CF3,CF3M,CF8C,CN7M(2-48)Design & Manufacture Std.:API 600,API 6D,ASME B16.34,API 6D, ...