发明名称 ELECTRIC FUSION PIPE FITTINGS
摘要 A method of manufacture of an electric fusion pipe fitting comprising the steps of: forming a circumferential helical groove (6) in a tubular surface (2) of a plastic pipe fitting (1) and laying a wire (8) in the groove (6). Preferably the groove (6) is formed by incision and the wire laid by groove cutting tool (4).
申请公布号 WO8200699(A1) 申请公布日期 1982.03.04
申请号 WO1981AU00116 申请日期 1981.08.18
申请人 ESDAN PTY LTD;SOUMAR K;ERLING E 发明人 SOUMAR K;ERLING E
分类号 F16L47/02;B26D3/16;B29C65/30;B29C65/34;B29C65/36;B29C65/40;B29D23/00;F16L47/03 主分类号 F16L47/02
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