... ,agricultural,construction, mining, marine, and irrigation purposes.· Conveyance of air,chemicals,fertilizer and punematic lines etc· Also suitable for dust ... collection,vacuum cleaner,air condition ◊ Appearance · corrugated hose with smooth cover.· distance average ... protection ) 3) ISO9001:2008 PVC hose pvc suction hose pvc air duct hose pvc spray hose