Our company since its inception, always regards product quality as enterprise life, continuously improve production technology, improve product quality and continuously strengthen enterprise total quality management, in strict accordance with the national standard ISO 9001:2000 for Self Tapping Screws, Self Drilling Tapping Wood Screw , Self Drilling Concrete Screws , Phillips Bulge Head Drywall Screw ,Self Tapping Screw With Shoulder . We welcome all of the clients and friends to contact us for mutual benefits. Hope to do further business with you. The product will supply to all over the world, such as Europe, America, Australia,Borussia Dortmund , belarus ,Albania , Chile .Our production have been exported to more than 30 countries and regions as first hand source with lowest price. We sincerely welcome customers from both at home and abroad to come to negotiate business with us.