Zhejiang GuoJian Testing Technology Co., Ltd. (Tuam Tshoj National Center for Quality Supervision and Test of Standard Parts) yog ib lub koom haum thib peb uas tsis ncaj ncees lawm. Peb lub chaw soj nstuam dhau qhov kev txheeb xyuas ntawm cov chaw kuaj xyuas tsim nyog (CMA, CAL) thiab kev lees paub los ntawm Tuam Tshoj National Accreditation Stand (CNAS). Lub chaw kuaj mob kuj dhau los ntawm National Defense Laboratory Accreditation (DILAC), thiab tau txais cov ntawv pov thawj tsis pub lwm tus paub.
