In response to domestic electric casings, customers often ask first for price or maturity, but it is more important for the domestic electric distributor to check ABS, PP, fuel retardation, colour switching and high light requirements. Only by quantifying these conditions can the standard screws have an interpretable boundary with the choice of a dedicated screw.

The name of the industry itself is not an optional parameter, but it points to a quality focus and production rhythm. Car projects focus on long-term stabilization and traceability, medical projects on cleanliness, packaging projects on high speed, optical items on low pollution and low stress. Plant manufacturers should translate these industry requirements into verifiable screw and process indicators. It is recommended that customer information be broken down into five groups: products and moulds, raw materials, platforms, process objectives and existing problems. Product end logs of single weight, flowway, number of caves, wall thickness and appearance levels; ratio of feedstock end recorder number, melting finger, filling, flame retardation and retrofitting; terminal logs of tonnage, voltage, screw diameter, maximum travel, injection pressure and plasticization. All data are sourced and are marked, drawn, physical, measured or estimated by clients.

Technical communication distinguishes between three types of objectives that must be met, desired improvement and acceptable. It is necessary to meet the hard boundary of the item for the determination of equipment and screws, and it is hoped that the improvement item will be used for the comparison of standards and specialized programmes, while the acceptable item will help to control costs and deadlines. This would avoid stacking all requirements on a screw and would make it easier for clients to understand the real value of each configuration. The focus of discussion in this paper is on ABS, PP, fuel resistance, colour switching and high light requirements, which must correspond to the customer ' s current production conditions and not be limited to the maximum values in machine samples.

From the point of view of sales management, a cleaner front end and a moderate mixing structure should form a standard process that can be repeated. Each project saves original needs, computations, final drawings, test modelling data and client feedback, and can call on experience in the event of a similar machine or material, but there is still a need to reconcile key differences and not to copy the historical configuration directly.

The cost of the misconfiguration is not only the screw itself, but also the cut-off, the waste of raw materials, the testing of molds, the delay in delivery and the credibility of customers. It would be more economical to create preventive measures around the dead end of the stream to prolong the change and create a black spot than to re-engineer after the problem has arisen; the vendor could then move from a mere offerer to a partner capable of taking on technical screening.

The client is advised to set clear upper and lower limits around the color-removing time, colour differentials and black dots instead of simply writing " running normally " . Quantification criteria may include measurement of time fluctuations, extremely poor product weights, number of black dots, change time, hourly production or ton wear and tear, with specific projects choosing indicators that really affect business outcomes. Where the information is temporarily incomplete, the pre-selection scope and the list to be confirmed may be provided, but it should not be considered a final commitment. Frozen configurations after completion of ABS, PP, fuel retardation, colour switching and high light requirements by customers can reduce erroneous orders and facilitate the use of the same version of data after production, testing, installation and sale.