The stainless steel water collection weir is an overflow device used in conjunction with sedimentation tanks in water supply and drainage engineering. It can be categorized into U-shaped water collection troughs and L-shaped water collection troughs based on shape; and into serrated triangular weirs and orifice weirs based on discharge form. The serrated triangular weir features a simple structure, convenient installation, adjustable weir plate height, and a wide range of applications. The orifice water collection trough is suitable for pools with relatively stable water levels. The U-shaped weir is primarily used in water supply projects to collect surface water overflowing from the outlet end of horizontal flow sedimentation tanks, which then flows into the outlet trough for further processing. The L-shaped water collection trough is mainly used in drainage projects to collect water that overflows around primary and secondary sedimentation tanks after passing through baffles. The trough body is fabricated from high-quality stainless steel plates using large CNC equipment for shearing, cold forming, and welding. The stainless steel plate thickness typically ranges from 3 to 6mm, offering characteristics such as high strength, precision, and corrosion resistance.