Factory supply directly Delivery time: 15-30days 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 it chromed or not? A: Chromed or not, we will according to your requirement. Chrome thickness: 20-30mmQ3: What is the ...