Symbol 0603 from ISO 7000 - Title/Meaning: Single-width fabric 
Function/description: To indicate a single fabric web (for example, on textile machines, to distinguish single-web from multi-web).
Own work using: iso.org/obp/graphics/grs/38b71012-f503-4cc7-82a8-e808f1006ce3 200.png
Vectorization:  Mrmw