... @low noise and have no waste gas HK-1850A electric floor road sweeperFEATURES:1,The series HK is equipped with a high ... sucking filter and an automatic system. It is widely used by the park, environment and hygiene departments, cleaning companies, property management ... file breeze type, HK-D series:Whole close model;13,Electric sweeper is series product, according to it of function all ...