... buildings, highways, high-speedrailway foundation treatment . Rotary drilling rig get rid of the cable tie and mobiles ... of constructions.Can realize the SMW process, multiple spindle drilling machine, diesel hammer, hammer, hydraulic hammer and ... working apparatus for multiple method constructionModelWHL90WHL120Max drilling diameter(mm)φ1000φ1000Max drilling depth(m)3035center-to-center (distance ...