1. Are you a trading company or manufacturer? We are a professional factory with 10 years experience in the field of High and Low voltage switchgears,Substation,transformers,cable distribution box and various electrical equipment, such as vacuum circuit breaker , load break switch etc. Our factory is the excellent supplier of State Grid Corporation of China. 2. Do you accept customized serveice? We offer OEM/ODM service, can print your logo on product. our professional technical and quotation team can provice a satisfied project according to your drawing and parameters. 3. What is your MOQ? Our MOQ is 1 piece. 4. How long is your delivery lead time? It depends on your product requirement and quantity. Generally, 5~10 working days is available. 5. How do you solve quality problems? Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days. 6. What is your payment terms? 30%T/T in advance,70% before shipment. West union, L/C are also acceptable.