Ungakhetha njani iimveliso ze-foam zesinyithi?
Izinto zesinyithi ezinefoam zinemida emihlanu ephambili: 1. I-substrate yesinyithi, oko kukuthi, zeziphi izinto zesinyithi ezenziwe ngazo izinto zefoam yesinyithi ezinemingxuma, kubandakanya i-nickel enefoam, ubhedu, isinyithi, i-iron-nickel alloy, i-copper-nickel alloy, kunye ne-surface heavy...
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