How to use 1 Central wedge + 2 wedges composition, 2. First using quarrying dedicated drill holes, remove residual powder of hole 3. Next upside down the big side of 2 wedges (flat to flat),and put it into hole. 4. Then upside down the small side of central wedge between 2 wedges , and finally using the hammer split stone
? Quantity: 7 set Note: Before use, please make the necessary protective measures When the stone is about to split, keep alert.
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