... Inspection with High-tech.devices. Q1,Which is the material we can supply you?A: AISI, ASTM , DIN, JISI, standard. S45C, ASTM1045, DIN45 ... or CK45 ; ST52 OR ASTM A572; 20MnV6 or din17121; 42CrMo4 or AISI4140,DINCrM04...Q2: Does ... .2MM/M ; Tolerance of Dia. +0.00mm/-0.04mm Out-of- round : 0.04 mm total maximum ,Q5: What is the package ?A: Package1,All ...