used plastic extrusion machinery While producing used plastic extrusion machinery, Nanjing Tengda Machinery Co., Ltd. only establishes cooperation with suppliers who are in line with our internal quality standards. Every contract we sign with our suppliers contains codes of conduct and standards. Before a supplier is finally selected, we require them to provide us with product samples. A supplier contract is signed once all our requirements are met.
TENGDA used plastic extrusion machinery Customers like used plastic extrusion machinery for its excellent quality and competitive price. Its quality is guaranteed by a series of inspections in different sections of production. The inspection is carried out by a team of experienced technicians. Besides, the product has been certified under ISO certification, which reflects the efforts Nanjing Tengda Machinery Co., Ltd. makes in R&D.pvc extrusion process,extruder operation,types of extruder screws.
