The "Extra Quality" grade is defined by its low carbon content, which ensures high weldability and formability. Typical constituents include: ≤is less than or equal to Manganese (Mn): 0.20% – 0.50% Silicon (Si): ≤is less than or equal to Phosphorus (P): ≤is less than or equal to Sulfur (S): ≤is less than or equal to

The phrase "Extra Quality" is not merely a marketing tagline. It represents a verifiable upgrade in manufacturing protocols, material sourcing, and quality assurance. Here is the breakdown of what elevates JUQ195 to the "Extra Quality" tier:

: Organizations like the International Accreditation Service (IAS) provide frameworks for technical standards. "Extra quality" designations usually imply that a product has exceeded baseline requirements for durability, safety, or precision during third-party testing.

: A specific batch or proprietary grade code used by a particular mill for a limited production run of high-quality (Extra Quality) paper. Regional Private Label