เบาและทนทานด้วยพื้นผิวด้านที่มีพื้นผิวเรียบลื่น Javascript not detected. Javascript necessary for This page to operate. Make sure you allow it as part of your browser settings and refresh this website page. Javascript not detected. Javascript essential for This website to function. Make sure you permit it as part of your browser options and refresh https://kskurve61470.mybloglicious.com/47870706/ks-kurve-for-dummies