SEVEN HOLES WITH WIRE: Material: Aluminum Alloy, Zinc Alloy, Nylon Machining: CNC machining center We are rich in experience and promise to do our best to provide the effective and individual service for you.1.High quality foot brake valve,hand brake valve,relay valve,protection valve,air dryer,levelling valve and so on2. Strict quality control at ISO 9001:2000 and ISO/TS 16949 3).Good process ...