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2020-1-17 9:14:48      
    п˿ϵѡʵ̼˿ͨܵԶеܵ纸ӹƳɣƽȹ̣ǿʹп˿IJֲýػ򲿷ֳѹҲ·ɶ󣬸˿ͺжпȶƣ͸ʴԺãһ˿߱棬ǽϵС


    ʩܣȽ˿Ԥ淶úãӦڷָУڱ²Ĩ2-3LĿѣĨ棩ɰȻê˨˿ƽȶп˿һãͷλĴӿȲӦС5M


    ;ʢͨΧˮۡȷеֲ֡Χդܵȣ㷺ڹҵũҵ͡ɿȹǽǽõĸ˿纸ͬǽ˿淶ʩλã׶ͬ1/2Ӣ=1.27cm,˿ǽ0.3-0.5mm,ǽ0.4-0.9mm,ʩλԸ˿


    Ĩõĸ˿ҲƵ纸Ϊȶп˿һĨҸ˿Լܽ᣺ǽĨҷˢֵӦһһ룬еĹ̿ǵʽܻѡһġеĿǹ̵ʩѡáǿȶп˿






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