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Grade

3.6,4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9,etc

Carbon steel

Gr.B,Gr.C,Gr.D,Gr.36,Gr.58,1010,1015,1016,1020,1045,etc

Alloy steel

4130,4140,G51150,etc

Stainless steel

201,202,301,302,303,304,316,310,430,etc

Brass

C28000,C37710,C3450,C27200,etc

Bronze

C51900,C60600,C17200,etc

Alumimum

100,5052,6061,6063,etc

Electroplate

Zinc plated(while, colour, dacroment),Nickel

plated, copper plated, gold plated, chrome(3+Rohs &6+ )

plated, anodic oxidation, etc

Dip plating

black oxide coating, hot dip galvanizing, etc

Flame plating

Light oil, spray coating, electrophoretic

coating, etc

Polishing

Grinding and polishing, etc, except mirror finish

Roundess

0.002mm

Cylindricity

0.003mm

Roughness

Ra0.32

Straightness

0.01/200mm