6, ọla kọpa alloy valvụ: adabara PN≤ 2.5mpa mmiri, oké osimiri mmiri, oxygen, ikuku, mmanụ na ndị ọzọ media, nakwa dị ka okpomọkụ nke -40 ~ 250 ℃ uzuoku ọkara, nke a na-ejikarị maka ZGnSn10Zn2 (tin bronze), H62 , HPB59-1 (ọla kọpa), QAZ19-2, QA19-4 (aluminom ọla).7, elu okpomọkụ ọla kọpa: adabara nom ...
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