Bellstone Hi-Tech International manufactures Hand Operated Sieve Shaker for 20cm Diameter Sieves. Bellstone Hi-Tech International is an ISO 9001:2000 certified company. The Company also manufactures various types of geotechnical equipments, laboratory research and scientific equipments, electrical and electronics instruments, oil and petroleum testing equipments, dairy and milk testing equipments, Pharmaceutical Testing Equipments etc. The Hand Operated Sieve Shaker for 20cm Diameter Sieves is suitable for bench mounting. The Hand Operated Sieve Shaker for 20cm Diameter Sieves has light weight and are portable.