continue to enhance, to be certain solution top quality in line with market and buyer standard requirements. Our corporation has a excellent assurance program are actually established for Modified Truss Head, Drywall Screw Bugle Head , Hex Socket Head Cup Screw , Head Shoulder Screw ,Self Drilling Hex Head Screw . Our products have exported to North America, Europe, Japan, Korea, Australia, New Zealand, Russia and other countries. Looking forward to build up a good and long term cooperation with you in coming future! The product will supply to all over the world, such as Europe, America, Australia,Philippines , Singapore ,Peru , Casablanca .Our Company has professional engineers and technical staff to answer your questions about maintenance problems, some common failure. Our product quality assurance, price concessions, any questions about the products, Please feel free to contact us.