Hanging pulley is suitable for wood-made sliding gate or metal-made sliding gate. It is designed with mute structure and the key component is produced by adopting pure copper die-stamping component...Movable door is quiet, soundless and endurable as well. Hanging rail is manufactured with good quality aviation alloy material, which has good capacity of skipping-proof, dust-proof and strong weight bearing convenient installaion etc...Also we have some other accessories for you to choose.