Pharmatech Engineers Pvt. Ltd. Manufactures Mixing and Storage Tank. Pharmatech Engineers Pvt. Ltd. Or Sehgal Industrial Works manufactures Pharmaceutical & Chemical Equipments. The Mixing and Storage Tank is designed with polished mirror finish. It has a trolley with castors. This comes in capacity ranging from 50 ltrs to 3000 ltrs. This Mixing and Storage Tank comes under liquid or oral section.