At first glance finished doors are almost impossible to sawing janitor profile, check the quality and use of materials. How to tell from the quality of wooden doors and cons? KBA introduced the four strokes business checking doors approach. Dian weight. General solid wood composite door, then filled with hard wood about 110 kg weight, honeycomb paper door filled only 60 to 70 kg, hollow doors, only 50 to 60 kg weight. Interior doors
Listen to the sound. Knock on the door body to listen to the voice, the voice of boring solid wooden doors, thick; hollow doors sounded more crisp and thin. Read process. Careful observation of the wood door table, natural wood grain real natural leather, and wood will be slightly fuzzy texture of paper. Touch finish. Good quality solid wood composite door surface smooth and delicate, and small workshops will be done out of the surface is not smooth, rough. | 
