STEEL TUBE FOR INTERNAL USE; MATERIAL: STAINLESS STEEL MATERIAL STANDARD: AISI 316 TI; OUTER DIAMETER: 20 MM; THICKNESS: 3 MM TYPE: SEAMLESS; THE SUPPLIER MUST DELIVER HYDRAULIC TESTING PROTOCOLS AND QUALITY CERTIFICATES; IDENTIFICATION, PROTECTION AND PACKAGING JE S/PRA 5 ALM100.; MANUFACTURER 1: PARKER; MODEL 1: ERMETO