Sturdy Products Ltd | 1,435 followers on LinkedIn. Think quality... Think Sturdy | Sturdy Products Ltd., one of Ireland's leading rotational moulding specialists, commenced trading on October 1st 2001 as the successor to Tank Engineering Ltd. Tank Engineering Ltd had been trading for over twenty years before its activities were split. Sturdy Products Ltd is both a manufacturer of its’ own range of rotationally moulded products and a distributor of other market leader products.