作者: David Charles Harget , Jyri Jarvenkyla
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摘要: A method for the manufacture of a heat fusion fitting, which comprises i) forming body (1) comprising at least first layer cross-linked polymeric material, ii) embedding or partly ferromagnetic heating element (11, 12) in second material (13, 14) to form an insert (7, 8), having Curie temperature equal greater than crystalline melting point softening 14), and iii) assembling 8) fitting.