This wood paneling frame is made of medium density fiberboard (MDF).Excellent material in high strength under pressure is not easy to deformation, no fracture, no odor, anti - moisture, do not fade.
Can produce 0.10mm-100.0mm wire diameter of spring's main products are: springs, torsion springs, extension spring, compression spring antenna, battery springs, abnormity springs, and other special spring, etc.