hat
1, Pre-sale sèvis: fè fas ak konsiltasyon ak divès kalite kesyon, ak voye pwofesyonèl pèsonèl teknik fè sou-sou sit ankèt yo bay plan konsepsyon preliminè ak sijesyon ki rezonab.
eng
1、 Pre-sale service: dealing with various consultations and questions, and sending professional technical personnel to do on-site investigation to provide preliminary design plan and reasonable suggestions.