Xinxiang Changling Helicoil Machine Manufacture Co., Ltd is in China, It is a company specialized in manufacturing all kinds of the �£??wire thread insert and its install tools, such as spanner, 7-spanner tools, ST taps and unload, broken tools and so ***** perfect technological process system, and strict quality control system are our first faith to aspire to lead. Since the material enters the factory, producing process control, product examination, products quality tracing after sales, all strict controlled according to ISO-9001 quality system request, also fit for GJB119.1A~119.3A-2001standards, Now the insert technology has been widely used in many industriessuch as aerospace, aviation, electricity, instrument, chemical fiber, and so on. Homepage:*****