Ukungunda kwe-silicone, eyaziwa ngokuba ngundo lwe-vacuum, kubhekiselele ekusebenziseni itemplate yokuqala ukwenza i-silicone ukungunda kwindawo yokucoca, kwaye igalele nge-PU, i-silicone, i-ABS yenayiloni kunye nezinye izinto kwi-vacuum state, ukuze udibanise imodeli yokuqala. . Umfuziselo wemodeli efanayo, izinga lokubuyiswa liphendule...
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