... flexiblity,swing no noise 4,delivery on time 5,ISO9001 heat shrinkable tube covered gooseneck SC-2010 ItemsSC-2010MaterialSpring wires & galvanized iron ... environmental protection.10, Delivery on time and best after-sale service.11, No rework so far , and high reputation.12, ... has passed in gooseneck field in China2.Best after sale service, quality guarantee two years, if the customer complain about ...