China wholesale ASTM A307 Hex Bolt Factories – Hex bolts DIN933 gr10.9 black color – Zhongli bolts Detail:
Material: 35K 45K 10B21
Head shape: Hex head
Grade: 8.8
Thread: F.T
Application: Industrial Bridge towers
Package: Normally bulk packing , according to customer’s request.
Delivery:40-60 days
1.What kinds of steel you use for grade 10.9 hex bolts DIN933?
Our factory mainly use 40Cr, 35CrMo,42CrMo to produce 10.9 bolts, it depends on dimension of bolt
2. Do you make heat treated at your own factory?
Yes, we do. We can control quality by ourselves with our own equipment.
3. where is your main sales market?
We have domestic market and international market.
4. Where is your international market?
We export to EU, USA, Africa, Middle east, Asia.
5. How long is your factory’s history?
We have 19 years experience for productions and sales with professional teams. Welcome to send inquiry to us.
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We have probably the most state-of-the-art output equipment, experienced and qualified engineers and workers, recognized good quality manage systems plus a friendly skilled income workforce pre/after-sales support for China wholesale ASTM A307 Hex Bolt Factories – Hex bolts DIN933 gr10.9 black color – Zhongli bolts, The product will supply to all over the world, such as: Madrid , Adelaide , Italy , Our company will adhere to "Quality first, , perfection forever, people-oriented , technology innovation"business philosophy. Hard work to keep making progress, innovation in the industry, make every effort to first-class enterprise. We try our best to build the scientific management model, to learn abundant professional knowledge, to develop advanced production equipment and production process , to create the first-call quality products, reasonable price , high quality of service , quick delivery , to give you create new value .

In general, we are satisfied with all aspects, cheap, high-quality, fast delivery and good procuct style, we will have follow-up cooperation!
