granite surface plate
High hardness granite inspection surface plate is in black color
with bright, homogeneous structure,good stability, high hardness,
anti-rust and chemical-resistance.
Standard: GB/T 20428-2006
Specification: The maximum workability is 3000mm in width and
6000mm in length or customize (special size is acceptable following
Surface: T-slots, dovetail-shaped slots, holes, etc.
Hardness of the working surface: HS70
Surface treatment: ground finish
Precision grade: 00-1
Packaging: wooden box