Dear Mr Mounir Mahrous,
We read your purchase order of rock drill in the internet and we also produce them.
This is Justin from Qiangli Pneumatic Machinery(1995),which produce the pneumatic rock drill,jack hammer,drill bit, drill rod,etc tools,which are widely used in the drilling and blasting work in the mining,qurry,and construction projects.
All of our products have passed the iso9001-2000 international quality systerm.
If you are interested in, we are glad to send you our product catalogue and price list after getting your contact info.
My warm regards.
Justin
Qiangli Pneumatic Machinery