... Water Flexible hose,hoses,PVC hose, PVC flexible hose Size: F1 1/4" X 40 X 50. Water Flexible hose,hoses,PVC hose, PVC knitted hose1. Flexible hose ... valve put through a six-step QC process before delivery.Material Control, Machining Quality Control, In-coming Material ... Assembly Line Quality Control, Leakage Testing, Final Inspection Before Delivery.3) 100% Leakage Test.4) Strictly and perfect ...