High lift temporary roof support for mines
High pressure live service pipe renewal apparatus and method
High resistance flexible boom
High shear strength clay liner, method and apparatus for its pro
High strength anchor
High strength corrugated metal plate and method of fabricating s
High strength corrugated metal plate and method of fabricating s
High temperature oil boom cover blanket
High temperature oil containment boom
High temperature resistant floating barrier
High temperature resistant oil boom flotation core
High tensile strand, anchorages and methods of installation ther
High vacuum extraction of soil contaminants along preferential f
High volume tidal or current flow harnessing system
High-aseismic reinforced concrete pier using unbonded...
High-flow sediment-free fish ladder
High-flow void-maintaining membrane laminates, grids and...
High-load underground dam
High-speed cable-laying apparatus
High-vacuum groundwater and soil remediation system and related