What is represented by the margin symbol (C)?

The margin symbol (C) specifically denotes cleanliness inspection by craftsman. In practical terms, this symbol serves as a reminder or a checklist item for craftsmen to ensure that materials and work areas meet cleanliness standards before further processing. Cleanliness is crucial in many industries, particularly those involved in manufacturing, electronics, or aerospace, where contaminants can adversely affect the performance and reliability of the final product.

By highlighting the importance of cleanliness, this symbol underscores the responsibilities of craftsmen to maintain high standards throughout the execution of their tasks. This practice not only enhances safety and compliance with regulations but also helps in preventing defects and ensuring quality assurance in the overall project. Recognizing this symbol allows craftsmen to prioritize necessary inspections and uphold the integrity of their work.