Hoofar is specialized in supplying 300 Bar /4500 PSI Carbon Fiber Cylinders and 300 bar Electronic Air Compressors . All of our products have been approved ISO 9001-2015, CE /TUV, DOT Certification. We always supply products with reasonable price and high quality to our customers. We have been making great efforts to achieve win-win project and sincerely hope you can join us .