_:nacd683bfa4754a1db6e16be99f810b05xb0
<http://schema.org/contactType>
"Customer Support"
<http://xn--bnthnghim-q1a0m2439a.vn/tin-tuc/lau-sach-dung-cach-be-mat-ban-thi-nghiem-thiet-bi-khac-phong-thi-nghiem/>