Product Details
Features: 1) Executive standard: contract required, ASTM A213, A199 A335 (ASME SA213, SA199 SA335) 2) Specification range: OD: 11-25mm; 2-4mm, OD: 10-65mm; 1-7mm 3) Steel kind / steel grade: 15Cr, 20Cr, SCM 415H T5, T11, T22, T91 (P5, P11, P22, P91)