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本帖最后由 albert.tang 于 2016-8-6 14:35 編輯
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$ _& u4 u* X5 O& Y0 C+ gHeli-Coil® inserts are precision formed screw thread coils of stainless steel wire having a diamond shaped cross section.4 B) N, z Q! q( M, ? c
When they are installed into Heli-Coil® tapped holes, they provide permanent conventional 60' internal screw threads that accommodate any standard bolt or screw.
J0 A1 C7 u7 n# ~* b# q7 SUS 亞馬遜網站有介紹：
3 y2 v. P2 a" u3 n: Jhttps://www.amazon.com/Heli-Coil/b/ref=bl_dp_s_web_3030648011?ie=UTF8&node=3030648011&field-lbr_brands_browse-bin=Heli-Coil7 W. h9 j6 P; v! a0 i% g, Z
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發表于 2016-8-6 09:34:53
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