Omega Type (semicircular) Flexible Spring Drainage Pipe for Tunnel Engineering

US $ 0.8-1 /Square Meter FOB
MOQ:10,000 Square Meters

Warp Knitted Geogrid for Railway Slag Protection

US $ 0.345-0.35 /Meter FOB
MOQ:10,000 Meters

Waterproof Board of New Waterproof Material for Tunnel.

US $ 1.6-3.1 /Square Meter FOB
MOQ:15,000 Square Meters
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