div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: DTH DRILLING PRODUCTS · HR series DTH hammer a kind of valve-equipped low-air-pressure hammer with a single piston a plate valve and a central exhaust structure The compressed src=https:reader030fdocumentsinreader030viewer20220409195e968badf3c629750e132fe7html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: DTH DRILLING PRODUCTS · HR series DTH hammer a kind of valve-equipped low-air-pressure hammer with a single piston a plate valve and a central exhaust structure The compressed src=https:reader030fdocumentsinreader030viewer20220409195e968badf3c629750e132fe7html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: DTH DRILLING PRODUCTS · HR series DTH hammer a kind of valve-equipped low-air-pressure hammer with a single piston a plate valve and a central exhaust structure The compressed src=https:reader030fdocumentsinreader030viewer20220409195e968badf3c629750e132fe7html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: DTH DRILLING PRODUCTS · HR series DTH hammer a kind of valve-equipped low-air-pressure hammer with a single piston a plate valve and a central exhaust structure The compressed src=https:reader030fdocumentsinreader030viewer20220409195e968badf3c629750e132fe7html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: DTH DRILLING PRODUCTS · HR series DTH hammer a kind of valve-equipped low-air-pressure hammer with a single piston a plate valve and a central exhaust structure The compressed...