... Casting , Machining and Final Inspection.100% final check for every valve can be guaranteedSUPERIORITY1/2"-6" NPT/BSP/DIN Thread Stainless ... stainless products manufacturer, we can produce stainless steel ball valve, gate valve,check valve, cut-off valve, camlock couplings from Type A to Type DC ... hex cap, sqare plug,hex plug, barrel nipple, hose nipple,union f/f , etc. You may rest assured that we have ...