1.3.0MM wall thickness design, stable and safe, fearless of typhoons
2.Heavy duty series two track sliding doors with built-in buffer design, making door and window sliding smoothel
3.Stainless steel load-bearing pulley, high load-bearing, smooth push-pull, durable and long-lasting
4.Using silicified wool strips is beneficial for improving the airtightness and water tightness of doors and windows