<https://thietbisovietnam.com/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebSite>
<http://thietbisovietnam.com/san-pham/may-soi-hanh-ly-hikvision-isd-sc6550s-4cvl220vo-std/>