1.Convenience in installation,it shortens working time and labour fees.  2.Neither air nor environment pollution while installing.With good effect for space dividing and beautifying.  3.Re-cycled Material which is meet the environment protection policy in the world. Using fire proof material to assure living safety.  4.Can be installed according to practical demands.  5.The physical coeffcients of all kinds frames are ready for customer and designers’reference and request.