1.Peb muaj tag nrho cov kev tswj xyuas zoo. 1.1 Kev tshuaj xyuas ua ntej tsim khoom:1.2 Thaum tsim khoom:1.3 Kev xeem cov khoom tiav. Kev Tswj Xyuas Zoo 2. Daim ntawv pov thawj thib peb UL, FM, SGS, ISO9000, ISO4001, Hom thiab ANSI 3.Qee ntawm peb cov neeg koom tes, feem ntau koom tes nrog peb rau ntau tshaj 10 xyoo