��֥��ѡ��ִ�б�׼��GB/T22165��GB19300��

zhy2272 · �� 2020-12-2 10:31

�� 2020-12-2 10:45 �༭

��֥��ִ�б�׼��GB/T22165��GB19300��

tlxspblcs · �� 2020-12-2 10:43

2216522165

yazhouhou · �� 2020-12-2 10:48

��ʳ��Ʒ��׼��¶��

zhy2272 · �� 2020-12-2 11:06

yazhouhou �� 2020-12-2 10:48
��ʳ��Ʒ��׼��¶��

һֱ��ϲ飬��֪��ô��

ffjaisyf · �� 2020-12-2 11:17

��ѡ�ĸ�GB19300��ϣ��Ϊ��ǿ�Ʊ�׼

yazhouhou · �� 2020-12-2 12:08

zhy2272 �� 2020-12-2 11:06
һֱ��ϲ飬��֪��ô��

ǿ��ʳ��꣬�ǵ��ߣ��ء�
��ݲ�Ʒ��ԣ�ѡ��ʺϵĲ�Ʒ��׼��
�Ӽ��˵��Ϊ��Ʒ��ִ�б�׼��
��ǣ��Ҫ��ʵ��Ӧ�õĿ��ԡ��͵��м��ô��˼�ɡ�

[��]��֥��ѡ��ִ�б�׼��GB/T22165��GB19300��