Contact Us

TEL: +86-574-86159088
Fax: +86-574-86158328
Address: Hongxi Industrial Park No.12th ,Chunhu Town, Fenghua District  ,Ningbo ,Zhejiang Province,China 

Home > FAQ


1. Why choose China Ningbo Tianhui Machine Co., Ltd ? Any advantages ? 

The answer is Yes . There are five advantages :

(1) Mutual Win : Our offer will be reasonable , our price will be cheaper in the same quality .

(2) Customize: We can make the products as your request , shape and quality can meet your request.

(3) OEM : Laser print your logo ;  Design your packing box .

(4) Mix Order : We accept mix order , different model and small quantity order .

(5) After Service : Can reback the off-test product or ask back the payment when get the off-test goods and judged off-test by the third testing party .

2. How do i ensure that my data is protected and secured ?

Usually , we show our machining work by displaying pictures of parts in the website , but we promise not to sell to others .  If customer don't like to show their products on our website , we will promise his require . 

3. Common express companies :

DHL , FeDex , TNT , UPS . Will choose the most economical shipping method .

4. What formats of drawings can you open ?

PDF , CAD , JPEG , JPG , or 3D files such as IGS , STEP , Solidworks  .

5. I don't have any drawing , can I send you a sample ? 

Yes , we can creat drawings per the original samples offered by our customers .

6. Do you provide modification service by CAD or 3D drawings from sample ?

Yes , we provide modification services if you want to change the design . 

7. How long does it take to quote ?

Usually we can quote out in two days after we receive RFQ with all the necessary details . But if there are more than ten types need to quote , we will need about a week to quote . 

8. What kind of payment conditions do you accept ? 

For samples , we need 100% sample fee to be paid before start making samples . Or if there is mold , we need 50% mold cost prepaid , the balance 50% mold cost to be paid before shipment . We will send you Inspection Reports and photos of samples for you to approve before shipment . 

For mass production , 30% T/T down payment before production , balance 70% against B/L copy . 

9.What are all the types of materials you can supply for forgings and for castings ?

Material Available: For casting , the material could be stainless steel , carbon steel , alloy steel . For forging , the material could be stainless steel , carbon steel , alloy steel , aluminium , brass .

10.What are the maximum sizes and weights that you can produce: forging, casting & machining? 

The maximum size for stainless steel parts could be 700*700*700mm , and the weight could be 200kg .   The maximum size for carbon steel parts could be 1000*1000*1000mm, and the weight could be 350kg .

And we could also produce sand casting parts at our coooperation company . The material is grey iron and ductile iron . For grey iron , the material grade could be HT150, HT200, HT250, HT300, HT350 . For ductile iron , the material grade could be QT400, QT450, QT500 , QT600 .  The maximum size for sand casting could be Φ1500*2000mm , and the weight could be 4000kg . 

For the above size and weight is the maximum we could do , and for the smaller parts we could also produce . 

11.Are there any special capabilities that your company has that we cannot see from the website?

We have passed the certification of ISO9001:2008 and TS16949 , our production and quality is ensured strictly of this certifications . For any high quality products , we can do the PPAP and Control Plan as per customer's request . 

We have our own CMM , we can inspect precision dimensions that the normal caplliers cann't measure , and ensure the quality .