These vessels are fabricated out of imported stainless steel sheet of 304 quality, with S.S legs mounted on wheels. Wheels provided are special type, with two ball bearing for efficiently working, especially rounded from circumference for easy rotation. Vessels are with removable type lid at the top, having hinge lever arrangement, so that during mixing, the lid covers the tank completely and can be removed without opening the shaft of the mixer. The tanks are also provided internal marking™ in liters at various levels, complete with ball valve for solution removal. The vessels are given mirror finished polish.