... ,10B38...Stainless steel is SS201,202,302,304,316...copper is shiny brass , pure copper,such as H62,H65,H68...Aluminum is good ... in most of places such as drywall,concrete,chipboard,machine,wood...2)Main export market:North America,South America,Eastern Europe ... ,Asia,Western Europe .3)Service:OEM service offered,Design service offered.4)Make samples as per customer's request ...