pvc flexible shower hose, 1. corrugated hose 2, we've get TUV and ISO9001:2000 certification. 3.use in washroom pvc flexible shower hose1, ... F1/2"*F1/2" plastic nut with chrome, plastic or nylon core, corrugated hose, with TUV ... and ISO9001:2000 standard2, our hose are popular in some east Europe countries ...