欧美激情精品久久,日本无遮挡边做边爱边摸,亚洲精品色无码av,999国内精品永久免费视频

The special training course Practical Application of Carbide Products was held in the conference room of Guanghan branch on September 28th. For the special training course, professional application engineers were invited to give lectures, and key personnel of marketing center and technical center attended the training.

The purpose of this special training course is to make employees know the operation of the corresponding equipment of the company's products and the operation process of the equipment, so that the salesmen and technicians have a profound understanding of the characteristics of the company's products in different environments after matching the equipment, and once again strengthen the awareness of the working conditions of the products, and enhance the professionalism of the production and sales departments.