Axel Sperber, Engineering

<body> Drilling Consulting and - Engineering, Special Downhole Products and Systems, Supervision, Project Management drilling, drill, bits, core, oil, gas, well, casing, tubing, consulting, ASDES, IDEAS, bohren, Bohrtechnik, Bohrung, Bohrmei�el, Bohrkronen, wellbore, bohrloch, Erd�l, Erdgas </body>