E ai ki te whakaritenga matou kiritaki o, whakawhānui matou te whānuitanga o ngā rauemi matou ngongo koranu tae atu rauemi konukoreko Cooper. Tae atu C70600 (CuNi 90/10), C71500 (CuNi 70/30), C71640 (CuNiFe66 / 30/2) ko C44300, inaianei kua pai kaweake matou hua arumoni ki Brazil, ko te kaiwhakamahi mutunga ...
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