Profile: G. R. Mfg., Inc. offers construction equipment like wildfire suppression, trash handling, recycling and demolition. Our manufacturing processes include a Trumpf laser burning table and Pacific pressbrake - both computer controlled with direct links to our integrated manufacturing software. Our V-blades for H-series crawlers can be installed in less than 5 minutes. These blades are available in two sizes-fit, 90" or 97" blades. These blades have replaceable cutting edges. This allows for use of straight or V-blade from one machine.