gmsminerepaircom G M S M i n e R e p a i r M a i n t e n a n c e S P E C I A L I Z E D MINING S E R V I C E S V E N T IL A T I O N 3013348186 23 Mine Seals 120psi MSHA Approved 120 PSI MSHA approved mine seals GMS has thoroughly trained and highly experienced installers that have been constructing 120 PSI seals since the development of the latest regulations We can pump underground or from the surface utilizing a feet of both crib and seal pump systems