adjustable aluminum casement door window pivot hinge swing doors windows flag type hinges

  Ruian Yaer Door & Window Hardware Co., Ltd is a professional large-scale manufacturer of hardware for doors and windows, integrating development production and sales together. The products are used for aluminum alloy door and window, PVC & UPVC door and window, wooded window and door profile. Main products include tilt and turn window series, sliding window system, hinge series, handle series, transmission rod series, friction stay series, multi-dot lock series, door lock and other door & window accessories.