Business philosophy: Do specialized do fine, do steady and strong Quality policy: Integrity-based, quality of survival, scientific and technological innovation, the pursuit of advanced level of the industry. Quality objective: The qualified rate of finished products is ≥99% (reject rate <1%); Customer satisfaction≥90%. Environmental and safety policies: Follow environmental regulations, based on pollution prevention, the pursuit of energy saving and low carbon, create environmental protection brand, advocate people-oriented, care for employee health, harmonious and sustainable development, highlight social responsibility.