细节
COOKE, TROUGHTON & SIMMS, York
A metallurgical microscope, with coarse and fine focusing, angled body-tube with micrometer eyepiece with digital display and circular stage -- 15in.(38cm.)high
A metallurgical microscope, with coarse and fine focusing, angled body-tube with micrometer eyepiece with digital display and circular stage -- 15in.(38cm.)high
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See illustration