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For cheking, identifying and speccifying the roughness by symbol
Rust-proof, made of pure Nickel
Machining method:
Flat lapping Criss-cross:
Ra: 0.025, 0.05, 0.1, 0.2µm
Rz: 0.34, 0.56, 0.63, 1.23µm
Flat lapping parallel:
Ra: 0.025, 0.05, 0.1, 0.2µm
Rz: 0.34, 0.56, 0.63, 1.23µm
Quantity: 8 pcs
