Yudong ntim yog cov kws tshaj lij cov tshuaj pleev ib ce thiab kev tu tus kheej ntim cov chaw tsim khoom uas koom nrog tsim, tsim khoom thiab muag txij li xyoo 2013. Peb tau txais ISO9001 thiab SGS daim ntawv pov thawj thiab ntau tshaj 30 daim ntawv pov thawj ntawm kev tsim patent. Peb muab ntau hom kev pleev xim ntim thiab ntim cov tawv nqaij, cov ntaub ntawv loj xws li yas, txhuas, PCR, Acrylic, iav, ntoo.