1 ISO9001:2008 ACS ROSH PAHS certificate 2 Flexible tranparent,Non-toxic,Non-smell 3 Resist UV,Small bending radius 1 Appearance:spiral hose with smooth cover.distance average between each ripple.colourfull and odorless, non-toxic.flexible, soft, bend naturally. 2 Application:Application for drainage water suction and discharge in agricultural,construction, mining, marine, and irrigation purposes ...