The cross linking agent of polysulphide rubber base impression material is______________?
(A) Aromatic sulfonate esters
(B) Stannous octate
(C) Platinum salt catalyst
(D) Lead dioxide
The cross linking agent of polysulphide rubber base impression material is______________?
(A) Aromatic sulfonate esters
(B) Stannous octate
(C) Platinum salt catalyst
(D) Lead dioxide
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