Chang Ling Metal Products Co., Ltd is an ISO9001:2008 certificate company which is the leading manufacturer in wire thread insets business with more than 20 years experiences.We have advanced automatic production and test equipments, best research�sales�service and design system. Chang Ling Metal Products Co., Ltd has long term cooperation relationship with many Chinese Aerospace, Chemical, Military, Automobile companies such as CNHTC, CNAC, XCMG and etc. Our wire thread inserts has been widely used in Radar Shell, Motor, Instrument, Space Flight and Aviation, Ships, Arms and etc fields. Chang Ling Metal Products Co., Ltd could produce any kinds of Helicoil according to clients&＃039; requirements in Military Standards, Air Flight Standards and National Standards. Our CL-coil could perfect instead of German, British, France and Japanese coil. Brief Introduction about CL-coil Wire Thread Insert is a new internal thread of fastener. It is made of high strength, precision, corrosion resistant and diamond wire. The CL-coil looks like spring, when it is assembled in matrix thread , its internal surface to be the standard thread . If CL-coil is assembled with Screw, it could enhance the connection strength and abrasion resistant, especially in AL, Mg, Cast Iron and other low strength materials. CL-coil also could improve thread&＃039;s stress state and to be spring connection, remove the errors of pitch and thread angle, protect the thread avoiding to be broken, and extend working time CL-coil prevent the thread rusting, stucking, trip with perfect corrosion, high heat and abrasion resistant in many kinds environments .CL-coil also could repair the internal thread. CL-coil Precision Type:6H, 5H and 4H CL-Products: Ordinary Type Self-lock Type ENSAT Thread inserts Tools:Tap, Drill, ST-Plug, Wrench ADVANTAGE Enhancing the connected strength of internal thread Improving the working life Reducing the weight of the casting housing