PE steel belt reinforced spiral bellows, polyethylene steel belt reinforced bellows advantages and construction specifications
PE steel belt reinforced spiral bellows, polyethylene steel belt reinforced bellows advantages and construction specifications PE steel belt reinforced spiral corrugated pipe construction steps: slotting-down pipe-connection-backfill 1. Slotting of steel belt reinforced polyethylene spiral corrugated pipes 1. The pipeline should be laid on the original ground or the compacted ground after