... 50,000 open and closing test 3.unfixed base design self taken apart hydraulic hinge J09.J08.J07 without black plastic ... base to adjust degree.Every series have full-overlay, half overlay and insert three kinds.Opening ... /pp bag ,10pcs/inner box,100pcs/outer carton,standard packing. self taken-apart hydraulic hinge/clip-on model/ J series middle model