Engineering iji replenishment, ngwaahịa alloy ígwè ọkpọkọ A333 GR6, nkọwapụta bụ 168.3 * 7.11, na carbon ígwè ọkpọkọ GB/T9948, 20 #, nkọwapụta bụ 114.3 * 6.02, wdg Ndị na-esonụ na-ewebata ụkpụrụ na ihe na engineering iwu ga-ezute: 20 # GB8163...
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