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PVC high-rise rainwater/ Horizontal hoop expansion joint

PVC drainage/ spiral drain-pipe for building

PVC drainage/ Enhanced spiral drain-pipe for building

PVC drainage/ Hollow spiral drain-pipe for building

PVC mute drainage/ Spiral tee

PVC mute drainage/ Spiral vertical pipe check hole

PVC drainage/ Special elliptical pipe for seat shifter

PVC drainage/Unblocked seat shifter B-type （exit、entrance、union lever）

PVC drainage/Unblocked seat shifter C-type （exit、entrance、inside-outside joint）

PVC drainage/Unblocked seat shifter inside-outside joint

PVC drainage/Unblocked seat shifter union lever

PVC drainage/Unblocked seat shifter exit