... , Special steel, Aluminum, Copper, Bronze, etc. Standard: AISI, ASTM, DIN, JIS, BS (As per customer need)Machining and Processing: Heat treatment ... , Wear-resistant steel,Aluminum, Copper, Bronze, etc.StandardAISI, ASTM, DIN, JIS, BS (As per customer need)Machining and ProcessingHeat treatment, Polishing ...