原裝美國TABER S-34鋅板,S-34標(biāo)準(zhǔn)鋅板
S-34標(biāo)準(zhǔn)鋅板 NEMA 標(biāo)準(zhǔn)板, 0.032" ,鋅, 1/4" 孔, 5 片。
S34 Zinc Standardization Plates are used to evaluate the abrasion characteristics of S-42 and S-33 sandpaper strips. Each plate is 4” square, .032” zinc with ¼” center hole. (5 pcs.)