Tenders for Supply of Pneumatic Valve. Air Unloader Valve Size 1/2, Plasser Part No.90200 Or Wabco Tvs Part No..-301940, Make-Plass Er, Duncanschrader Warranty Period: 18 Months After The Date Of Delivery Pneumatic Valve For Horn Size 1/4, Plasser Part No..90357/90337 Or Schrader Part No..53004Hs, Make-Plasser, Duncanschrader Warranty Period: 18 Months After The Date Of Delivery