2. Material: carbon steel
3. Quality System Certification: ISO9001:2000
4. Our factory specializes in manufacturing fasteners, such as expansion bolt, hex bolt, and various size of hex nut. We have professional technicians and complete lines, a variety of custom-made to meet the customer’s demand, the category of the product is various and the size is accurate. Meantime, we can give the customer warm and thoughtful service, if you have any need, please just contact us and we will make you satisfied with us!







