TESTING
JMD Company conducts in-house, small scale flame tests in our MSHA approved test chamber. All Brattice and Poly-Vent Ducting are rigorously tested to ensure MSHA flame specification compliance.
JMD Brattice Cloth is also tested for weight, tensile, and tear strength to make sure you meet your most challenging underground conditions.
 All JMD product components are domestically produced to our specifications and constantly monitored by our quality control department.
JMD Company has been producing top-quality mine ventilation products since 1902. |
