Kev paub

Ntev npaum li ua tau kom ntev cov xim tsis kam mus rau kev laus nyob rau hauv qhov kev txiav txim ntawm lub hnub ci ultraviolet rays, ntawm cov xim PV

270 degree occluding txheej txheem ntawm lub ru tsev phaj yog stitched los ntawm tsis siv neeg occluding tshuab clamping ob-sided ib leeg-txhawb siab