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發表於:2016-10-20
Shanghaijingbongfastenerco.ltd.Theyhavequick-releasefastenerprovidedwiththread.Moreover,wealsoexportsomekindsoffastenerproducts.Weprovidereliablefasteneratareasonablepric...
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發表於:2023-12-31
1、Thestrengthofascrewfastenerincreaseswiththesquareofitsdiameter.2、Boltedjointscanbereadilydisassembledandreassembled;henceBoltsorscrewfastenersareusedmorethanothertype...
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發表於:2017-12-03
TheSwedishengineerwhoinventedthezipfastenermadeagreaterintellectualleapthanmanyscientistsdoinalifetime.Infiltrationirrigationisanewwater-savingirrigationtechnology,andzip...
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發表於:2018-09-25
slidefastenershearlinglinedsuedebootsTheideaofaslidefastenerwasfirstexhibitedbyWhitcombL.Judson(died1909)attheWorld'sColumbianExpositionof1893.ThemodernformofthezipperBe...