Glass fiber hoop wrapped composite cng cylinder for vehicle 1 low weight-capacity ratio; 2 excellent fatigue resistance; Our ... :2000,ISO/TS16949:2000,DOT,BV,TUV,and TC. The cng cylinders have been awarded quality prize,provincial famous brand and ... product liability by PICC Property and Casualty Co. Ltd. These CNG-2 hoop-wrapped composite cylinders with steel liner for vehicles ...