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New type non-resharpening tungsten carbide button bit for light-duty percussion rock drifter : Proc International Symposium on Mine Planning and Equipment Selection, Calgary, 3–4 November 1988 P389–394. Publ Rotterdam: A A Balkema, 1988

✍ Scribed by Xue Qingpeng


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
112 KB
Volume
27
Category
Article
ISSN
0148-9062

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