Qingdao Gastone Technology Co., Ltd. is a company specializing in the design, development, and manufacturing of various types Truck Tyres, Car Tires , Light Truck tyres, Off Road Tyres, Agricultural Tyres and Industrial Tyres, Three Pieces OTR Wheel（fitted with center disc) and all kinds of other wheels and axles etc. All the products have got European ECE, American DOT, Germany TUV, Brazil INMETRO and Negeria SONCAP ,China CCC and TS16949 certificates.