Before sale: professional engineer will raise a reasonable proposal according to your actual requirements and performance data; provide you with a design plan by using CAD,3 DMAX drowing method for an optimum solution.

• 售前专业工程师将按您的实际要求和性能参数，提出两全其美的专业建议；运用先进的cad、DMAX制图，为您提供各种设计方案，制定出最合适的解决方案。