The Department of Trade and Industry issued the Department Administrative Order (DAO) 21-08, series of 2021, or the “The New Technical Regulation Concerning the Mandatory Product Certification of Ceramic Plumbing continue reading : DTI-BPS adds ceramic shower bases to its list of mandatory products for certification
![ceramic sink](https://www.dti.gov.ph/wp-content/uploads/ceramic-sink-150x150.png)