亚洲成A人片在线观看国产,成人A片产无码免费视频奶头鸭度,国产精品成人免费视频网站京东,YY111111少妇影院无码老司机

Honor

Honor

In recent years, the company adhering to the "scientific management, the pursuit of perfection, market development, sustainable development" purposes, the convergence of the domestic metal materials industry of a group of senior experts and senior technical personnel, and the introduction of advanced management mode, and cultivate a batch of modern management personnel, providing strong technical support for the company. R & D, production and customer service. "Day" brand was rated as Tianjin famous trademark, GB, through the GJB9000 quality system, environment system, 14000 18000 occupation health system certification, weapons and equipment research and production license certification and safety standardization of two level audit.

System certificate and award certificate

Product performance

The precision strip, tubing, wire and magnetic materials produced by the company are widely used in computers, mobile phones, electronic products, automobile accessories, medical equipment, high efficiency and energy saving batteries and aerospace, shipbuilding and other fields.