发明名称 Surface preparation equipment - for butt welding plastic pipes
摘要 <p>Surface preparation equipment for butt-welding plastic pipes The apparatus consists of a double disc carrying radially installed scrapper blades on each outer face and rotatable in the space between the two pipes ends. Centring discs are fixed on the two outside faces of the double disc and have an external diameter equal to or less than the internal diameter of the pipes.</p>
申请公布号 NL7011904(A) 申请公布日期 1971.03.22
申请号 NL19700011904 申请日期 1970.08.12
申请人 发明人
分类号 B23B5/16;B29C65/00;B29C65/02;(IPC1-7):29C17/10 主分类号 B23B5/16
代理机构 代理人
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