What products does Shichang Electronics (Shenzhen) Co., Ltd. make? Is there any R&D staff in the company? What is the salary?

Our company sold him some materials, and the order was cash on delivery, without any reason. The materials within 2000 yuan say that a promissory note is required. I think our salesman is very angry with him. 1the materials ordered at the end of October, 20 1 12, were delayed until the end of February, saying that cash would be paid after New Year's Day, and that it would wait until June 65438+1October 10 after New Year's Day. It's June again 15. What a rubbish company, LZ. Look before you leap.