Look at the article first, then discuss the series
WLA is the accumulator-head series; the confirmed article-volume range for standard machines is 30–200 L, excluding customized projects. WLU is the continuous extrusion series. WLP is the multi-layer co-extrusion series. WLC is the Customized series. Series names provide a starting point for discussion and do not replace model-specific confirmation. Capacity for WLP and WLC is confirmed per machine model; WLP layer count is confirmed per machine model and configuration.
Write down four clear items
- Volume and geometry: provide drawings, target volume, weight and service conditions.
- Materials: state the grade, regrind situation and known processing requirements.
- Layer structure: state mono-layer or multi-layer needs and the target packaging performance.
- Output: write the target throughput, shifts and site constraints; avoid inferring station count from annual volume alone.
Form a confirmable proposal
Finally, review the article, mold, materials, machine configuration and acceptance conditions together. Accuracy, energy and output figures in a proposal should state the configuration, test method and applicable conditions before they become acceptance criteria.