Ningbo Yinzhou Qishan Nylon Rod Manufacturing Co., Ltd., formerly known as Xiangshan Qishan Rubber & Plastic Products Factory, founded in 2004, is a specialized enterprise engaged in long-term R&D and production of high performance plastic semi-finished products. Until now, we have been focusing on the field of extruded semi-finished products for more than 10 years.

Thanks to the long-term cooperation with plastic scientific research institutions and sustained investment in precision production equipment and independent technological innovation, we overcome many industry problems, own a number of invention patents and master the corn technology of precision extrusion. The quality index of our products which is tested by the national authoritative testing organization have reached the international level of same products. Now, we have become a powerful enterprise with R&D whose production quality can achieve the import quality in China.

In 2004, our first independent brand of JING GU was founded that has enjoyed a high reputation in domestic market. Product categories includes PA, POM, PP, PE, ABS, PVC and other plastic semi-finished products. It has served more than 30 industries and more than 1, 000 well-known enterprises, widely used in machinery, chemical, hardware, shipbuilding, paper, cement, steel, automotive, electronics, food, pharmaceutical, aerospace and other industries. With its excellent quality, JING GU has successfully replaced import products in various industries, solved the shortcomings of 'Made in China' in core technology, won respect and trust of domestic and foreign markets, and became the leader in the manufacturing of high-performance engineering plastic semi-finished products in China.

The precision extrusion technology of JING GU bars has successfully broken the situation that corn technology has been mastered by Germany, Japan, Switzerland and other countries, solve the common problems of domestic extruded plastic bars such as external diameter's out of roundness, irregularity of bar roundness, redial dimension difference, axial dimension difference, bending straightness difference, internal pore, impurity, holes, crack and white corn on inner core.

JING GU carry out relieving of internal stress on seme-finished products strictly. For different plastic materials, we use the best annealing mode and time control which is helpful to realign the inner molecular spherulites of plastic products to solve the warpage, deformation, cracking and dimensional instability that occur during the product finishing process.

With a deep understanding of product application and many years of innovation, JING GU continues to lead the technological innovation in the industry and determined to improve the quality of materials in the field of high performance plastic semi-finished products. As a pioneer in this industry, JING GU maintains excellent manufacture theory and professional literacy, aim to provide high quality products and create greater value for the customers.