IS:10990-[Pt.1]-1991: ISO:6412-[Pt.1]-1989. Indian standard technical drawings : simplified representation of pipelines. Pt.1 : general rules and orthogonal representation.
Bureau of Indian Standards[BIS]
IS:10990-[Pt.1]-1991: ISO:6412-[Pt.1]-1989. Indian standard technical drawings : simplified representation of pipelines. Pt.1 : general rules and orthogonal representation. - New Delhi Bureau of Indian Standards 1991 - 11p.
IS CODE / B.I.S
IS:10990-[Pt.1]-1991: ISO:6412-[Pt.1]-1989. Indian standard technical drawings : simplified representation of pipelines. Pt.1 : general rules and orthogonal representation. - New Delhi Bureau of Indian Standards 1991 - 11p.
IS CODE / B.I.S