... OD2-30mm,any length 2,strong holding,no rebound 3,high flexiblity,no noise when swing 4,customized surface 5,ISO9001 ... PVC as per the customer request.We can garantee the high quality: high flexibility , good holding ability and well positioned.Our core competitiveness ... passed in gooseneck field in China2.Best after sale service, quality guarantee two years, if the customer complain about the products ...