发明名称 A COMMON DUCT HAVING PAIR HOLE AND REINFORCED CONCRETE CONDUIT MANUFACTURING METHOD USING THEREOF
摘要 PURPOSE: A perforated conduit having two holes and a manufacturing method of a reinforced concrete pipe are provided to assemble the perforated conduit without a separate binding wire, and to prevent failures of a product. CONSTITUTION: A perforated conduit having two holes includes the following: a perforated conduit(10) used for manufacturing a reinforced concrete pipe; two perforated conduits(12,14) arranged in parallel with a perforated holes(12a,14a); an elastic binding elements connected with a reinforcing rod between the perforated conduit; and a transverse reinforcing rod supporting piece(20) preventing the perforated conduit from being twisted.
申请公布号 KR100933699(B1) 申请公布日期 2009.12.24
申请号 KR20090055647 申请日期 2009.06.22
申请人 WON ENTERPRISE CO., LTD. 发明人 KIM, JEONG HWAN
分类号 B28B23/08;B28B21/30;F16L9/08 主分类号 B28B23/08
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