The Outer Valve Assembly for the Gingway Hot Rubber MA-10 Melter/Applicator is a reliable replacement part designed to ensure smooth operation. Keep your equipment running efficiently with this essential component. Order online or call (616) 608-6169 to place your order today.he Outer Valve Assembly for the Gingway Hot Rubber MA-10 Melter/Applicator is a reliable replacement part designed to ensure smooth operation. Keep your equipment running efficiently with this essential component. Order online or call (616) 608-6169 to place your order today.