Drainase Corrugated Drainage Pipe (Pipa Drainase Bergelombang)
Corrugated drainage pipe HDPE double-wall (Type S) standar AASHTO M294 — bergelombang di luar, halus di dalam, solid atau perforated, 4"–60" untuk culvert.
- AASHTO M294
- Type S dual-wall
- 4"–60" · solid / perforated