The second type: it is strengthened on the basis of the first type. Take the wooden keel as the frame and nail a layer of joinery board. The blockboard is mostly white, which is stronger than the first one. The advantage is that the outer surface is integrated, making it easier to take care of. The disadvantage is that the long-term seal is not tight, and the blockboard will be damp and rotten.
The third type: it is a change on the basis of the second type. The frame is still a wooden keel frame, with cement pressure plates nailed on the outside, barbed wire hanging, and then ceramic tiles attached. It's hard to say how strong it is. The advantage is that the columns are all bricked like walls, and the overall effect is very good. The disadvantage is that the second package method still has shortcomings, and another point is that it is not stable. After a long time, the corners of the tiles will crack, which will affect the appearance.
The fourth method: this method is widely used now, that is, using blue bricks or red bricks (which can't be bought in most communities) to build a column with cement to wrap the pipe, and then painting the outside before sticking tiles. This method is the most ideal one among various methods. The only disadvantage is that it takes up the largest space among several package methods, which is nothing compared with the advantages, as long as the room is large enough.