diverting river water for water source supplement
plastic box for microwave oven
pre-casting site for box girders
rock-socketed drop water box culverts
sealing box for keeping abnormal pressure
Composite board for concrete formwork
protective cover board for contact rails
analysis on demand and supply for water resources
automatic monitoring for water quality
automatic telemering system for water information
available water for regulation
Barrelled purified water for drinking