... tube, tested by 1500kg water press;smooth and tough,advanced technology 1. Main use: widely used in CNG ... fuel-auto and double fuel-auto, auto-braking system; auto-oil system, fuel system,etc2. Raw materials: low carbon steel tube ... , copper tube, seamless steel pipe3. Speciation:φ6.00mm × 1± ... Welcome to order! Thanks for your reading! CNG tube