Wind turbine main shaft, vehicle part forged
1. With 20 years of experience in the industry, DHDZ now enjoys rich experience and excellent professional reputation. Praises from the clients are not only the driving force behind us, but also the reason why we are your best choice.
2. Here at Dong Huang, we have a team of scientific and technological experts; Together with the latest manufacturing equipment and managerial expertise, we can guarantee the quality of out products in an environmental-friendly manner.
3. Located in Shanxi Province, China's natural coal mine, we enjoy the apparent geographical advantage. Therefore, while granting product quality, our company also has huge competitiveness in terms of price.
4. Decades of development has brought us at Dong Huang, a notion that we do not long for growing bigger and stronger, but for meeting the demand of our clients.
5. For the steady development of our company, Dong Huang has in recent years adopted scientific management, which has not only greatly enhanced the efficiency, but also maximized the benefit for our clients. Meanwhile, scientific management has been introduced in Dong Huang in client management.
Quality Control:
1. Inspecting apparatus and equipment are tested and supervised by relevant national departments on a regular basis.
2. We conduct physical and chemical inspection to raw materials.
3. All links in production are examined and properly reported.
4. We conduct loading examination to the packaging which should be applicable to rust prevention and shipment.
5. We carry out random inspection to products in the storage.
6. Each step of inspection is recorded in both image and written form.
Name: Hollow bar/forged pipe
Raw material: Carbon/stainless/alloy
Min size: Ø 90/Ø 50x130mm
Max size: Ø 1000/Ø 900x3000mm
Min weight: 4.00kg
Max weight: 12000kg
Heat treatment: Normalize/Quench/tempering
We were established in 1990 and have the experience in forging field more than 20 years, and now have 16000 M2 factory with 200 employees and ISO9001 & PED (TUV) had been passed, API and BV certifying are in processing.
Company Profile:
DHDZ China are manufacturer of the High Quality Steel Flanges and Forgings based on different standards: ASME, JIS, BS, ISO, DIN, EN, SABs etc.
Flanges covers Weld Neck, Slip On, Threaded, Lap Joint, Socket Weld, Blind, Orifice, Loose, Plate, Oval, Wind Power Flange, Tube Sheet, other Customized Flanges.
Forgings covers Blocks, Disks, Rings, Cylinders, Shafts, Tubes, Bars, other Customized forgings, etc..
Main Mateirals: Carbon Steel, Stainless Steel and Alloy steels;
International Standards: ASME, JIS, DIN, GB, BS, EN, AS, SABS, etc.
Standardization and Customization are both our advantages.
Certificate: ISO system, PED certificates, TUV certified.
Nearly 20 years experience;
clients from more than 15 Countries in EU, USA, Gulf area, UK, South America, AU, Asia, etc..
We will do our best to support you no matter big or small you are!
Production process:
Machinery & Processing equipments:
DHDZ Strict Quality control process ensures top quality and on-time delivery for flanges and forgings clients
Inspection & Package:
Quality Certificates:
Our Service Team:
FAQ- Frequently Asked Questions:
| Q1: Are you trading company or manufacturer ? |
| A: We are manufacturer focusing on Forgings and Flanges only; . |
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| Q2: How long is the delivery ? |
| A: About 10-30days according to the order quantity and weight. |
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| Q3: Do you provide samples ? is it free or extra ? |
| A: Yes, Sample orders are available, but NOT FREE. |
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| Q4: How to get quotation from your company quickly? |
| A: Just send us email with your request with Item description, materials, standard or drawing, quantity, we will respond and quote within 2 hours. |
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| Q5:How to visit our company? |
| A: Contact us in advance by email. Our Shanghai office and Shanxi factories are all OK to be visited. |
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| Q6: Is Third Party Inspection arrangeable? |
| A: YES. Customer could arrange TPI with extra charges or ask us to arrange. |
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| Q7: Is MTC and Heat Treatment Report available? |
| A: YES. MTC, HT, EN10204-3.1, EN10204-3.2 (equivelent to ISO10474-3.1A,3.1B,3.1C), COO, all available upon client's request. |
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| Q8: Any whatsapp or wechat or online chatting tools available? |
| A: Just send us your inquiry email and our salesperson will contact you with respective chatting tools. |
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| Q9: What is your Payment term and Departure Port? |
| A: T/T, L/C, D/A, all available. Departure port Tianjin, Qingdao, Shanghai CHINA all available. |
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| Q10: How about your MOQ? |
| A: We provide both prototype and mass production, Our MOQ is 1 piece. |
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| Q11:How long can I get a quote after RFQ? |
| A:we generally quote you within 24 hours. More detail information provided will be helpful to save your time. |
| 1) detailed engineering drawing with tolerance and other requirement. |
| 2) the quantity you demand. |
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| Q12:How is your quality guarantee? |
| A:we do 100% inspection before delivery, we are looking for long term business relationship. |
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| Q13:Can I sign NDA with you? |
| A:Sure, we will keep your drawing and information confidential. |
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