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详情介绍:
Double Step Double-Pointed, High Purity Carbon Rods, 6.2 dia. x 38mm long (1/4" dia. x 1-1/2" L)Tip: 3.8 / 1.6mm (0.15 / 0.066") double neck for Cressington carbon coaters. Impurity level of 5ppm or less.
Made in USA
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