construction hardware 1.Material: SS.S304 2.Durability and smooth operation 3.Surface treatment: polish4.Tested to 50000 cycles for durability.5.latest style and standards. 6.for UPVC and aluminum window.we are professional manufacturer of window accessory, we can produce all kinds of friction stay, window handle and have many design for your choice and we can produce according to cusomer's requirment
