In response to technical offers, clients often ask for prices or deadlines, but the seller of equipment and accessories should first check specifications, materials, heat treatment, applicable raw materials, interfaces and acceptances. Only by quantifying these conditions can the standard screws have an interpretable boundary with the choice of a dedicated screw.

The value of technology sales is to reduce the risk that customers will miss the equipment and accessories. Sales personnel need to close the demand questionnaire, technical evaluation, quotation boundaries, delivery nodes and post-sale recording, so that customers know what data each recommendation is based on, and that internal design and manufacturing teams have consistent information. 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.

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. The focus of the discussion here is on specifications, materials, thermal treatment, applicable raw materials, interfaces and acceptances, which must correspond to the customer ' s current production conditions and not be limited to the maximum values in machine samples.

The design basis and non-inclusion may be included as the main line in the project advance, with an evaluation of sales, design, process and customer participation. The evaluation focused on the completeness of the input data, whether the assumptions were confirmed by the client, whether the mechanical interfaces were matched, how standards and specialized programmes were selected, and who provided the acceptance data.

If they are placed on an empirically quick basis, only the name and price of the goods will result in a difference of understanding between the parties, which is likely to occur after the birth. The success of a single test module does not represent long-term stability, particularly for projects with high filling, high temperature, frequent colour change or multi-molecular co-plasms, and needs to look at changes in batches of material, the length of continuous production and the accumulation of wear and tear.

It is recommended that the main indicator be the number of changes, the dispute and the delivery accuracy, and that the temperature, screw velocity, back pressure, measurement position, buffer position, injection peak pressure and continuous sample weight be simultaneously recorded for the various areas of the drum. At least three reasonable process points, low, medium and high, are covered to confirm that the programme is not effective under a single parameter. The sales proposal should answer three questions at the same time: why this selection was made, which conditions had changed and which were re-selected, and how the customer validated the results. Clear presentation of the three issues would enable the technical offer to move from a trade in spare parts to a retroactivity technology project.