Explosion -proof hand pour gourds are divided into triangular hand pour gourds and round hand stubburies. The difference in the shape of the gourd in the hand, the triangular hand -pinoccoloic husher shell is harder than the round hand -shaped hand -stracting gourd. Therefore, the triangle -shaped hand -pour gourd's resistance is slightly stronger and durable. At the same time, its offer is higher than that of the round hand. Essence Round -shaped pour gourds are usually small tonnage, which can be applied to small tonnage operating areas. When choosing, the budget is budget, select the appropriate tonnage and style.