distribution of bi-cycle with 50 litres insulated box of reputed brands to fish vendors for the year 2019-20 at different blocks in the district of howrah of west bengal , , standard branded bi-cycle ( 22 frame size ) with a specially fabricated jumbo carrier to carry the 50 liters insulated box . , insulated box 50 liter ( made from usda / fda / eu approved food grades polyethylene materials in double wall construction by a unique moulding process with following attributes: i ) pu filled & uv stabilized . ii ) superior grade fittings and hardware iii ) hygienic iv ) strong and durable v ) leak proof , rustproof and corrosion-free vi ) keeps things stored in hot / cold condition for long er periods . vii ) box should be certified by the competent authority as fit for food )