Where is the manual for this machine?
specification document; specifications; blueprint
Rare synonym for 仕様書 in the sense of a technical specification or blueprint.
See also: 仕様書
開発チームは仕様書きに従って設計を進めた。
The development team proceeded with the design according to the specification document.
Compound of 仕様 (specification, way) + 書き (writing, document). The exact historical derivation is uncertain; it is a rare variant of the common term 仕様書.