1,10 years experience 2,Patent product 3,, Nice qpperance 4 Service for 8 ... produce the best goods for customers.1,Specialize in outdoor advertising billboard for 11 years2, Specification of Steel of Q2353, ... Anti-rust and Anti-Ultraviolet surface4, The Billboard can resist the wind speed at 8 levels5, High ... by ourselves from dig the hole to install the billboard double sided outdoor sign