Porous jacket-type weeping tile
Portable and adjustable boat dock bumper assembly
Portable aquatic hydrocarbon recovery system
Portable cleat for marine use
Portable culvert beaver guard
Portable dams
Portable dock assembly
Portable environmental containment system
Portable flood barrier
Portable flood barrier section and a flood barrier
Portable form for lining irrigation ditches
Portable inflatable dike
Portable levee system and portable levee system bag
Portable water conveyance assembly
Portable watering & drainage system & combined heating system
Power driven transfer roll for flexible oil collector tube
Power generation
Power generation and hydraulic flow controlling facility
Prefabricated drain-pipe with longitudinal joints
Prefabricated portable indoor/outdoor natural grass sportsfield