IS:10990-[Pt.3]-2001: ISO:6412-[Pt.3]-1993. Indian standard technical drawings : simplified representation of pipelines. Pt.3 : terminal features of ventilation and drainage systems.
Bureau of Indian Standards[BIS]
IS:10990-[Pt.3]-2001: ISO:6412-[Pt.3]-1993. Indian standard technical drawings : simplified representation of pipelines. Pt.3 : terminal features of ventilation and drainage systems. - New Delhi Bureau of Indian Standards 2 - 4p.
IS CODE / B.I.S
IS:10990-[Pt.3]-2001: ISO:6412-[Pt.3]-1993. Indian standard technical drawings : simplified representation of pipelines. Pt.3 : terminal features of ventilation and drainage systems. - New Delhi Bureau of Indian Standards 2 - 4p.
IS CODE / B.I.S