A 420 × 400 mm outline: which stated area covers it?
A planar dimension question can be answered without pretending that it settles material, clamping or installation.
Ask a question the evidence can answer
Three distinct questions about planar dimensions, process scope and installation facts. Each keeps unsupported conclusions open.
These comparisons use the same exact active records as the catalog and tools. They are not generic rankings or claims of firsthand testing. No approved affiliate income controls the factual result.
A planar dimension question can be answered without pretending that it settles material, clamping or installation.
These references have different source/process claims. A price or a power label cannot choose between two different desired results.
The installation question needs body and access facts. Working area and an optical-output number cannot fill them.