SURFACE ROUGHNESS SPECIMEN CODE – ISR-CS315 INSIZE 8 years ago For checking, identifying and specifying the roughness by symbol Accuracy: +20% ~ -25%, Ra<0.1µm Accuracy: +12% ~ -17%, Ra>0.1µm Meets ISO 2632 (ISR-CS329 meets ISO 8503/1) Rust-proof, made of pure Nickel Check the PDF
