Shaanxi Changling Textile Mechanical & Electronic Technological Co., Ltd. is a national high and new technology enterprise, which involves in R&D, production and sales as well. Changling originated from large war industry enterprise state-operated Changling Machinery Factory of the built national 156 key projects during the First Five-Year Plan period. Changling involved in textile electronic area in early 80s of the last century, and became the largest textile electronic instrument and electronic control equipment supplier in China after 30 years of development. Changling forms 8 kinds 40 varieties product pattern, equips domestic 3000 textile enterprises, exports to Southeast Asia, Central Asia, Africa, over 20 countries and regions.