Supply GB bolt GB screw size, Yongnian County Bowen Fastener processing GB bolts, we have advanced technology GB screws, excellent equipment GB screw machining, high-tech assembly line, is a professional GB bolt suppliers, reasonably priced Yongnian GB screws, complete specifications, allowing you to buy the rest assured useful products. There are special useful: T-shaped slot bolts, most with a special shape on jigs, side of the head to be cut off. Anchor bolts for machines and stationary ground connection, there are a variety of shapes. U-bolts, as previously described. And so on. Supply GB bolts, fasteners Yongnian County Bowen professional processing GB bolts, we have advanced technology, excellent equipment, high-tech assembly line, is a professional supplier of bolts GB, reasonable price, complete specifications. For hexagonal nut, common standards: GB52, GB6170, GB6172, and DIN934, for the main differences between them are: GB6170 thickness than the GB52, GB6172 come thick and DIN934, commonly known as the thick nut. The other is on the edge of the difference. Screw Size GB, GB screws, screw manufacturers technical parameters GB | Bowen Bowen provided by Yongnian County fasteners. Yongnian County Bowen fasteners (www.bwjgj.com) strong, credible, in Handan fastener industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Bowen fasteners and you hand into the brilliant, for a better future!