Our enterprise since its inception, usually regards product top quality as business life, repeatedly enhance manufacturing technology, make improvements to product excellent and continuously strengthen enterprise total high quality administration, in strict accordance with all the national standard ISO 9001:2000 for 200mm Diamond Core Drill Bit, Cylinder Head Line Boring, CAT engine, Skid Steer Rock Auger,Auger For Rock. Now we have extensive goods source as well as price tag is our advantage. Welcome to inquire about our products and solutions. The product will supply to all over the world, such as Europe, America, Australia,Spain, Paraguay,Philippines, Chicago.Most problems between suppliers and clients are due to poor communication. Culturally, suppliers can be reluctant to question things they do not understand. We break down those barriers to ensure you get what you want to the level you expect, when you want it. Faster delivery time and the product you want is our Criterion .