Shandong Zhenghua CNC Machinery Co., Ltd. serves the construction doors, windows, and glass industries, specializing in the manufacturing of complete sets of energy-saving plastic doors and windows machines, aluminum alloy doors and windows machines, insulated glass machines, and curtain wall machines. The company was founded in 1993, and its products are distributed in various provinces, municipalities, and autonomous regions of China, and are exported to more than ten countries including the United States, Russia, Nigeria, the United Arab Emirates, Brazil, and India. We strictly follow the ISO9001:2000 international quality system certification to manufacture high-quality, safe, and standardized products in exchange for the best customer feedback. Our sales strategy is to increase annual revenue by leveraging the positive reputation of our customers. More than thirty types of plastic door and window processing machines can complete plastic profile cutting, welding, milling, and cleaning processes. More than 20 types of aluminum window processing machines can complete the cutting, corner assembly, drilling, punching, and bending processes of aluminum profiles. More than 20 types of hollow glass processing machines and glass curtain wall machines can complete the cutting, cleaning, heating, gluing, cold pressing, edge grinding, assembly, and filling processes of trough aluminum hollow glass or composite rubber strip hollow glass. Due to differences in production scale and efficiency, we can customize the most reasonable production line assembly line according to your output ratio. We can provide customers with factory construction plans, cost-effective solutions, and the latest industry information. In order to make your installation and use safer, more convenient, faster, and more efficient, we have arranged professional engineers to provide you with after-sales technical guidance, troubleshooting, and other technical issues.