V3-12 V3-13 V3-14 V3-16 V3-20 series single bend tubeless valves Screw-on For Bus Truck ABOUT US: 1) We are manufacture of making bolt-in metal tire valve tr416 for more than 10 years 2) Quality control--our defectie products rate is 0.01% 3) Economically priced, exquisitely made. Experienced & responsible QC that you can rely on 4) Adequate supply capacity,Punctual delivery time 5) Best after sales service are provided