... All goods are strictly monitored and inspected from production to delivery with high quality, punctual delivery and excellent after-sales service.6. ... We keep close relationship with Fedex, DHL, UPS, TNT and other express companies for quick delivery.main production ... hex bolt and nut,brass bolt and nut,wheel bolt and nut,clamp bolt and nut.2.Bolt and nut is used on the electric motor, ...