Ventilation fan series.
Tunnel combined air valves for tunnel ventilation.
Open-circuit cooling towers.
Closed-circuit cooling towers.
Stainless steel water tanks.
Pot rubber bearings, spherical steel bearings, double-curved steel bearings, E-type steel damping bearings and other pro
Railway bridge expansion joint devices, including TSSF-K quick-replacement beam-end waterproofing devices and other seri
Plastic-steel wound pipes and plastic drainage pipes for drainage works.
Railway polyurethane signal and power cable troughs for the protection of railway signal cables.
BWFRP fiberglass reinforced power cable protection pipes for cable protection.
Waterproofing materials including plastic waterproofing membranes (sheets), rubber-plastic waterstops and immersed tube
Rubber sealing gaskets for shield tunnel segments.