An one-time pattern consists of a shell in the form of an article of easily removed material and a filler of material having a density lower than the density of the shell material and comprising cavities filled with air. An air bubble film is used as a filler.
申请公布号
UA79267(U)
申请公布日期
2013.04.25
申请号
UA20090008849U
申请日期
2009.08.25
申请人
PHYSICAL TECHNOLOGICAL INSTITUTE OF METALS AND ALLOYS OF NATIONAL ACADEMY OF SCIENCES OF UKRAINE
发明人
DOROSHENKO VOLODYMYR STEPANOVYCH;SHYNSKYI OLEH YOSYPOVYCH
