タイトルまたは説明

Door Closer serious As the oil hydraulic door closer with high quality these serious exploit excellent A-alloy to become press casting, thus achieve modern product modeling. Wheel gear and piston of the door closer are made of fine carbon construction with several heat treatment proceses. Stable quality excellent mechanical performance, it is very precise and smooth when running. The launcher is made of quality wires with heat and strengthened process to ensure the closing force and useful time.