Servall Engineering Works [P] Ltd. Offers Alloyed Cast Iron Drying Cylinders. Servall Engineering Works [P] Ltd. Supplies paper machinery up to 250 TPD capacities. Alloyed Cast Iron Drying Cylinders are used for installations after size press, after coating and for cooling applications. The food Industry uses Alloyed Cast Iron Drying Cylinders in the manufacture of powders and baby foods. In the chemical industry, these cylinders are used for the manufacture of foils, films and flakes. These drying cylinders can be supplied with ASME / TUV certification and also with CE marking for export to European countries.