1) Can spray any kind of bitumen 2) Never clogging on spraying bar 3) Oil heat to nozzles 4) Easy operation 5) high accuracy Ⅰ,OverviewThis machine was developed by Xi’an Dagang Road Machinery in 2001 and has got many mandatory tests since June 2002, acquiring the approval of The People's Republic of Economic and Trade Commission and passing the national CCC authentication. In October 2004, it ...