Gold Seal Engineering Products Pvt. Ltd. Manufactures Conventional Seals and Channels. The Conventional Seals and Channels find application on vehicles. These channels are made with natural rubber and cloth flock. These are used in Door Channels and Window Channels, of the Classic Cars and trucks. The Conventional Seals and Channels supplied in cut-lengths or rolls, as per the customers` requirement. Gold Seal Engineering Products Pvt. Ltd. Is an ISO 9001:2000 certified company. Gold Seal Engineering Products Pvt. Ltd. Manufactures extruded and moulded rubber/polymer sealing systems for automotive and industrial application.