Genera valvularum plasticarum in mundo maxime includunt valvae pilae, valvae papilionis, valvae reprimendae, valvae diaphragmatis, valvae portae et valvae globi.Formae structurae principaliter includunt valvulas duos modos, tres-via et multiplices.Materiae rudis maxime includuntur ABS, PVC-U, PVC-C, PB, PE, PP et PVDF.In t...
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