䓹ܵʹÉČңһ50굽70֮gȻ@aƷ|ڳSĕr͑ԓ_˵_˵ġҘ˜ʵIJ䓹ܵʹÉһ5070֮gзdzLdzķgAĹЧ

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һ䓹ܵ˜£
1䓹ܼܺHG/T21633-1991
2/ϩͺϹܵOӋҎ(gu)HG20520-92
3wSp@Ԙ֬ܣJC552-94
4wSϊAɰܣGB/T21238-2007
5wS픹ܣGB/T21492-2008
6oˮˮزwSϊAɰܹܵYOӋҎ(gu)̣CECS1902005

P䓹ܵԇ˜ʣ
1wSϹܶ̕rˮʧЧԇGB/T 5349
2wSϹSԇGB/T 5349
3wSϹƽаdԇGB/T 5349
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