The installation part of the wool strip is generally on the sliding window (door) fan, the surrounding wall of the frame fan or the sealing bridge (wind block) to enhance the sealing between the frame and the fan. The specification of the wool is an important factor to affect the sliding door and window and water tightness, and also an important factor to affect the switch force of the doors and windows. The size of the wool is too large or the vertical wool is too high, which not only makes the assembly difficult, but also increases the resistance of door and window movement, especially the initial resistance when opening and the final resistance of the final position when closing. The size is too small, or the height of vertical wool strip is not enough, which is easy to get out of the groove, which greatly reduces the sealing performance of doors and windows. Base Width: 5/6/7mm Pile height: 15/18/20mm The hair is long and thick. It can resist low temperature. Suitable for cold areas Brand: JYD Base Width: 4.8/5.8/6.8mm Base height: 0.6~0.8mm Pile height: 15/18/20mm(include base height) Color: Gray, Dark gray, blackIt is mainly used for plastic steel doors and windows, aluminum alloy doors and windows, wooden doors and windows and other architectural decorative doors and windowsQ: Are you a trading company or manufacturer? A: We are a factory. Q: How long is your delivery time? A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity. Q: Do you provide samples? is it free or extra ? A: Yes, it is free. Q: How can you guarantee the quality? A:Experienced team of engineers and strict quality control. If you meet with quality problem,  we promise to replace goods or return your funds. Products are approved by SGS,ISO9001. Q: I don’t find I want, can you OEM to me? What about minimum order quantity? A:Yes, we are a professional OEM manufacturer more than 20 years’ experience, we have a large supper ability, but we never refuse to small orders, the MOQ can be 5000 meters.