Pictures from our Russia customer for the dth drill bit


 Our dth drill bit is our hot sale products in the mining drilling tools, we not sale the dth drill bit to the Asia, Africa, South America, we also sell the drill bit to Russia, where the temperature is very low in winter, but our drill bit have a good performance during the cold days. and yesterday we got the pictures from our Russia customer, who just got our drill bit, he's very satisfied with our drill bits, and he will give us a feedback after the drill bit working for a time