Min. Order Reference FOB Price
1 Piece US$1.00-25.00 / Piece
Product Description
Spec Commercial High Precision Material As required like H-K9L,BK7,FS As required like H-K9L,BK7,FS Demension Tolerance 0 0 90degree daviation tolerance 1-3arcmin 10/-10arcsec 45degree daviation tolerance 20/-20arcsec 3/-3arcsec Flatness per [email protected] L-L/2 L/4-L/8 Surface ...