STB 2253-2012
System of design documents for construction. Holes, recesses, grooves, furrows. Conventional images and symbols

Standard No.

STB 2253-2012

Release Date

2012

Published By

BELST

Latest

STB 2253-2012

STB 2253-2012 history

• 2012 STB 2253-2012 System of design documents for construction. Holes, recesses, grooves, furrows. Conventional images and symbols