Gas drainage pipe and preparation method thereof
The invention relates to the technical field of pipes for coal seams, in particular to a gas drainage pipe and a preparation method thereof. The gas drainage pipe is prepared by mixing the following raw materials: 100 parts of synthetic plastic resin, 5-10 parts of a plasticizer, 5-7 parts of a stab...
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Format: | Patent |
Sprache: | chi ; eng |
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