High-quality carbon steel, corrosion resistance, and environmentally friendly
Ideal for single track double door
Stop the door to the tighten point
Nylon wheels, smooth and quiet operation
Sturdy track thickness: 5.8mm
Roller: The arm is steel, the wheel is POM(vibration-resistance performance, good wear resistance, toughness)
Roller bearing: High purity bearing steel Gcr15, passed the test of opening-closing for 100000 times, wear-resisting, ensure the stability of the move and the wheel’s fluency