1.We have strict raw material supply control system 2.Good management of production process system 3.Strict testing working-12 hours to 48hours testing machine 2)Packing&shipment: 1.Wooden packing or as per buyer's need. safe for transportation 2.Professional foreign sales department,good master of sea shipment and air shipment 3.Good relationship with shipping companies, get faster service and better freight 3)The delivery: 1. Production time 15-30 days 2. Guarantee delivery on time 4) Technical support: 1.We can offter instructions, photos, videos for buyers' installation and operation of the machine 2.If buyers need, we send engineers to abroad to install the machines for free, and buyer only need to pay for visa, round-trip tickets, room and food 5)After-sales service: 1.One year warranty, lifetime matainence 2.24hours on line service, you can contact us at any time! 3.Protective experience and business game zone management to buyers 4.Feedback the marketing information to buyers regularly 5. Follow up buyers regularly 6.Provides all sorts of consultation. based on rich expriences and strategic relations with buyers : 8m Diameter: 5.2*2.5m hight 8 person 1500W 220V Music