zhengzhou,chinatravelserviceco.,ltd.licenseno.:l-hen-gn01047zhengzhou,chinatravelserviceco.,ltd.foundedin1991,isapprovedbythetourismbureauinhenanprovincetopaythefullstockofqualitytouristenterprisesmargin.undertheministryoffinance,theministryofpersonnel,ministryoftourism,receivedthedepartmentofthemin