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International Standard Category: Other mining equipment

MT/T 785-1998    Polycrystalline diamond compact core bit
金刚石复合片取心钻头;
Category No.:73.100.99 Valid Status:superseded
Issued Organization:0 Issued Date:1998-11-10
Implemented Date:1999-4-1 Abolished Date:
Superseded Standard.:MT/T 785-2011 Polycrystalline Diamond Compact Core Bit
Superseded Date:2011-9-1
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