Flexible foam (for mattresses) are usually made of (A) PVC (B) Silicone rubber (C) Polyurethanes (D) Polyamides

Flexible foam (for mattresses) are usually made of
(A) PVC
(B) Silicone rubber
(C) Polyurethanes
(D) Polyamides
by

1 Answer

Answer :

(C) Polyurethanes
by

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