ya China Stone Machinery
Chenguang Biotech–Wothandizira opanga lutein ofunikira padziko lonse lapansi Chotulutsa chachilengedwe chokhala ndi carotenoid Lutein Mitundu yayikulu, yosalekeza, komanso yopangidwa ndi makina Imathandizira Kukhalabe ndi Maso Athanzi ndi Ubongo United States Patent: US 8,921,615,B2