High density low porosity refractory product and process for...

High speed batch mixer

High speed cutting belt

High speed pipe lining method and apparatus

High temperature refractory material applying apparatus for...

High volume portable concrete batching and mixing plant...

Hinged mold for concrete step structures

Hole forming plug

Hollow annular drill bit with hollow cylindrical carrier member

Hollow braid membrane

Honeycomb formed body and process for production thereof

Hopper assembly for a cement truck

Horizontal drum mixer with integral feeding and discharging...

Horizontal ribbon extrusion from a hopper and three...

Horizontal shear keyway forming assembly for slab forming...

Hydration means

Hydraulic binder-based, tapered-edge boards, production...

Hydraulic masonry cutting machine

Hydraulic mold release mechanism for precast concrete products

Hydraulically bonded cement compositions and their methods...