17 plastic hoses; synthetic resin hoses; vinyl hoses for agricultural purposes; plastic pipes; plastic sheets; rubber hoses; rubber pipes; rubber straps; non-metallic reinforcing materials for pipes; electrical insulation pipes; waterproof packing; filling materials for expansion joints; plastic fibers for non-woven fabrics; semi-processed synthetic resins; rubber rings; sealants; adhesive bands excluding for stationery, medical, household, and electrical insulation purposes