Combining trade, industry and technology as a whole, Hangzhou Jiacheng Machinery Co.,Ltd (hereinafter called Jiacheng Machinery) is a large-size enterprise specialized in producing worm reducer. It is devoted to provide special, efficient and power transmission solution. Its leading products are four series of gear reducers, WP series, NMRV series worm reducer and SWL series worm screw jack, among which the sales volume of WP series worm reducer ranks the first in the whole country for successive three years.