Hollow Block Engraving Machine
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after test the injection pressure the etching which remains by the etching work piece on wu to soak repeatedly in 1-2 Kg/cm2 situations can effective clear place fall, makes the etching speed to enhance greatly in the traditional etching law, because this etching machine liquid may circulate the regeneration use, this item may reduce the etching cost greatly, may also meet the environmental protection processing requirements
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