... 8 ,6.8,8.8,9.8.... Copper Bolts,Copper Bolt,Brass Bolts.1.What’s the ... Products ? MaterialsCarbon steel,Stainless steel,Alloy steel,Copper,Aluminum are available.Carton steel is high quality ... SS201,202,302,304,316...copper is shiny brass , pure copper,such as H62,H65,H68...Aluminum is ... your drawings,samples,detailed descriptions(we can provide drawing you want ).Service is continuing till after sales ...