Casement window and Sliding window, who is better? These problem, we have heard. So let the door handle manufacturers HEHE show you now.
  Everything has double face, because of the different starting point, so the result also is different.
  For example, the entrepot is usually used to save products, so it hasn’t too much requirement of gas tightness and temperature, it only need to keep out wind and rain. So it need the cheaper plan, the sliding window is better than Casement window in this condition.
  But in the high-cast house in city. The first element in our mind is not the price, we will think more about comfortable and safe. So Casement window is better than Sliding window in this condition.
  Casement window’s advantage and defect: Opening area big, excellent wentilating performance, excellent sound insulation performance, excellent gas tightness performance. But it takes too much space and it is not conveniented in rain day.

Sliding window’s advantage and defect: It takes less space, it is beautiful, its price is cheap and its gas tightness is excellent. It is easily to control, but its sound insulation performance is not good, so it is usually used in village and worker’s house.