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Դhttp://www.52qqsg.com/news/23.html ʱ2018-03-01

1

ԭƷģʱ̻ȫǿǿȲƷƲ

취

Ʒȫ̻ģȷǿѡõʵ֬ٱ̻֬ӦƷƽĽƷӦ

2ƷӲȺ͸ֶȲ

ԭ̻ȫ

취

ٽʹ߻ʵںͳʪʩֹǿܳ滷ӦָǿϵĺǷ񵽴ҪﵽҪֶԲʱҪƱ֬Ĺ̻Ҫʱк̻

3ѻ

ԭ

²̫֬ѡ̻²бϩ̻֬ȫϼƷƲӦܳʱֹ״

취

ٽ²Ӧ0.5 mmѡõԽ֬ϼ벻ܹƷ25%ƲƷ̻ٽҪȷ

4

ԭ֬

취ڼǿ֮ǰƷþֲ̻

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