Nws yog ib tug yas fastener siv rau phab ntsa nkag ib feem ntawm expansion screws.
Yas expansion raj, tseem hu ua phab ntsa expansion colloidum, yog tus yam ntxwv ntawm zoo elasticity, loj tensile quab yuam, cuam tshuam tsis kam, tsis muaj rupture, muaj zog hardness, tsis xeb, elastic, PP, PA, PE, cov khoom siv txhaj tshuaj molding.Muaj ntses hom phab ntsa expansion colloidal hais, ncaj expansion colloidal hais, txhawb nqa ntxhib hniav nws tus kheej tapping ntsia hlau.
Yas expansion tube yog tsim rau cov khoom ruaj khov, hollow phab ntsa, plasterboard, thiab ntom ntuj pob zeb, hauv qab phaj, txhawb phaj, bracket, baluster, qhov rais, qhov rooj, kab hlau rhuav phab ntsa, tshuab, girder, truss bar, bracket, staircase, sab nrauv phab ntsa kho kom zoo nkauj thiab cov khoom siv hluav taws xob.