Certified Cylinder, Inc. | Address: 3415 Hwy. 70 E. / PO Box 527, Crossville, Tennessee 38557, USA 
www.certifiedcylinder.com | Phone: +1-(931)-484-1521
Certified Cylinder, Inc. focuses on propane and refrigerants. We develop motor fuel vlaves, OPD valve and cylinders. We offer full expansion hydrostatic tests, shot blasts to remove old paint & rust a more...