Akamatsu - RU-100 referenced louver unit for HVS-100 product produced by high technology. RU-100 became irreplaceable of foundations. RU-100 referenced product which is satisfy the customer's needs, offers advantages of quality and cost. It produced result of tests of laborotory for years. RU-100 referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.