Roj hmab cov ntaub ntawv nrog lub zog siab, zoo elasticity thiab qaug zog tsis kam, xws li cov roj hmab zoo nkauj (xws li roj hmab neoprene lossis cov roj hmab nitrile, thiab lwm yam). Cov khoom siv yuav tsum muaj kev tiv thaiv zoo thiab muaj peev xwm tiv thaiv ultraviolet hluav taws xob, ntsuas kub hloov thiab tshuaj lom neeg thaum lub neej pabcuam kev pabcuam.
2. Lub hardness ntawm cov khoom siv roj hmab yuav tsum tau tswj tsis pub dhau ib qho kev tsim nyog los xyuas kom meej tias muaj peev xwm tiv thaiv kev ruaj khov thaum muaj kev ruaj khov.
Txhawm rau txhim kho lub zog compressive thiab ruaj khov ntawm lub taub hau, txhawb cov khoom siv tuaj yeem txuas ntxiv sab hauv lossis sab nraud roj hmab. Piv txwv li, siab-lub zog fiber fiber ntaub (xws li polyester fiber lossis aramid fiber ntau npuag, thiab lwm yam) tuaj yeem siv. Cov ntaub ntawv txhawb nqa yuav tsum tau muab faib rau ntawm cov roj hmab tseem ceeb ntawm cov roj hmab los txhim kho lub peev xwm ntawm lub zog ntawm sab hauv siab thiab cuam tshuam sab nraud.
Yog tias cov hlau txhawb nqa hlau (xws li cov xov hlau lossis cov khoom siv hlau, thiab lwm yam khoom siv hlau, thiab plating, lawv cov duab thiab ntau thiab tsawg Phim tus tsim ntawm cov kev txwv kom tsis txhob muaj kev puas tsuaj rau cov roj hmab thaum siv.
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