vision：
Langman of the world Global brand
management idea：
Customer supremacy Quality first Honesty and pragmatism Mutual benefit and win-win
Behavior idea：
Passion innovate Excellent Efficient
Enterprise tenet：
On the basis of the environment Take health as your duty Seek survival by quality
Enterprise spirit：
Pursuit of excellence Dare to be the first Dare to take a heavy responsibility Dare to climb the peak
