This official document, issued by the Public Works Department (PWD) of Bangladesh, provides a user guide for the use of ribbed bars in reinforced concrete construction. The ribbed bars comply with BSTI standards BDS ISO 6935-2:2006 (Grade-400). The document details specifications such as e-TIN: 140561440766, VAT Registration No: 21311002429, and BSTI License No: 16111/G-18/2017. The certified factory address is Shyampur Industrial Area, Dhaka.

The guidelines emphasize ensuring product compliance with standards through laboratory testing before usage. The document also mentions the mandatory use of the approved brand name for procurement and construction in government projects. Signed and approved by the relevant authority, it underscores the importance of adhering to quality and standards in construction practices.