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20Yľ߽Ǯң


ߣ  ݽʯԭ  2023-3-18

ڡľ߽ȽϷ㣬ʲôģֻҪңDZȽҵġôDzнǿĵأδصģҪԭǽʵ̫࣬еijҲһÿ20Yľ߽˺ʹҷ¡

1 ǵķҪ˽20Yľ߽ϵͰܴһֿͻҪ˽⽺ļ۸ô˵ľ߽϶1225YģDz20ˣȻǻǿ͸ľ߽Ҫ˽Ĺ1.01.21.8Լ0.8cmȿȡô20ľ߽һǮأ϶1.2Ԫһƽҵļ۸

2 20Yľ߽ҵ⣬ʵҲDZȽ鷳顣ΪҪһŲɹˡÿҪ50100ϣôǿԽеġΪٵĻȷʵЩΪѣ㵥

3 Ĺؼľ߽ȻȽϷ㣬DzζйгҶġΪҪĿûֽϵͰĹûУҲ޼£ɸΪ֮ؼÿûֿȵĥˡ

4 û٣ǵҪֹģôԭӦ̴ˡ߲ȡһֲ೤ȵģҲǿԵġֻҪڲӰ콺ʹá

֮Ƿ20Yľ߽DZȽϷˡҪԭкܶԹ˹ķ㡣


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