CMSMS insulated puncture clip structure has been carefully designed and made of high quality materials. Shell to strengthen the engineering plastics, even at high temperatures can also maintain good flexibility and strength, waterproof seal apron for high-quality rubber and silicone, both shell or waterproof apron are highly resistant to corrosion, anti-aging, anti- UV and anti-temperature change function. The clip is made of a specially made, highly conductive material to ensure good electrical performance.