Changzhou Raymond steel tube Co.,Ltd is located in Wujin District,Changzhou City,Jiangsu Province,China and located between Nanjing and Shanghai.It only takes 1 hour by high speed rail to the international metropolis——Shanghai.The geographical location is superior and the traffic is developed here. Our company’s main products is seamless precision tubes with wide usage.Our factory covers an area of more than 20000 squre meters,and…
You know seamless is raw material for many fields. Our precision seamless tube is used for gas spring products, auto and motorcycle such as bushing and shock absorber, and hydraulic oil. So we also need know the factor for how to impact the precision of seamless steel tube. The cross section of the Read More »
Steel pipe production plays an important role in the national economy, and all countries in the world attach great importance to the development of steel pipe production technology. At present, the annual output of steel pipes in the world has exceeded 700,000 tons. In the consumption of steel mater Read More »
The working steel pipe, the glass wool thermal insulation layer, the aluminum foil reflective layer, the stainless steel fastening tape, the sliding guide bracket, the air insulation layer, the outer protective steel pipe and the outer anti-corrosion layer of the conveying medium are sequentially co Read More »
In actual production, heat treatment deformation will bring difficulties to subsequent processing, affecting production efficiency, resulting in scrapping due to excessive deformation and increasing costs. Deformation is a problem that is difficult to solve by heat treatment. It is impossible to com Read More »
Many seamless steel tube manufacturers require special materials for their parts, ordinary materials can not meet the performance standards, and specifications sometimes are not national standards. This is a headache for purchasers of parts manufacturers. Because the special material seamless steel Read More »
FAQ
Q what is the main products of you company?
A
Our compay specilized in cold drawn seamless steel tube and cold rolled seamless steel tube.It is used for gas spring ,shock absorber, front fork,rear cushion ,exhaust muffler, automitve silences.
Q What is your company's annual output？
A
Our factory can product 8,000 tons seamless tubes one year.
Q What is the main application of the product？
A
Our seamless tube main use in gas spring，shock absorber，heat exchanger ,front fork , rear cushion, exhaust muffler and condenser and other occasion where high precision and brightness and mechanical property is required.
Q Your company can produce the steel tube with 80mm outside diameter?
A
Sorry，the OD of our steel tube is from 6mm to 65mm,tolerance :1-8mm.
Q What the main market of your company？
A
In addition to the domestic market, our existing customers in Pakistan, Malaysia,Thailand and Malasia ,USA,Canada etc.
1.We purchase high quality raw material from big steel corp.
2.We test 3-4 times in the production process.And quality control department test pipes random.Before packaging,pipe should be test in mechanical tester and rockwell hardness tester and Eddy current testing machine
3.Our Annealing furnace control temperature and annealing time through Semi-automatic digital control . It means we can control mechanical properity.
Q Compare with other company,what the advantage of your products ?(Hong YI)
A
1.We are family business ,we can save some unnecessary cost 2.We have our own brand. so we are responsible for our brand.Brand is our quality 3.We can provide best after sales service ，price is better in same quality 4.Semi-auotmatic gas annealing furnace can control mechanical properites better 5.Adequate supply capacity
Q How do you gurantee your delivery time？
A
1.For some big factories. Your quantity is not very big,but you are VIP customer in our factory. So we will do our best for your goods 2.If you cooperate with us. we can cancel some small customers. only produce for you
Q How long have you had the experience of production？
A
1.We have more than 14 year's experience
2.our factory covers an area of 20,000 square meters and more than 100 employees
3.Most of our customer are gas spring factories, shock absorber factories and automotive spare parts factories in different countries
Q Have you ever worked with big companies?
A
Yes,we have ever cooperated with Toyota. They purchased cold rolled seamless steel pipe for shock absorber.
Q What is your main product?
A
1.Our main products include cold drawn seamless steel tube and cold rolled seamless steel tube
2.OD：6-65mm；Wall thickness：1-8mm
3.We can produce 8000 tons of steel tube every year.
4.60% cold drawn tubes and 40% cold rolled tubes
Q What kind of quality certification you can provide？
A
What quality certification you need？We can provide most certification you need.
Q How long will the delivery take from China to us？
A
Before delivery time ,could you please provide more information? 1.Which craft you need？The time of cold rolled tubes may be longer than cold drawn tubes.
2.It also depends on your quality. The MOQ is 1 ton.One container , the delivery time is around 25 working days.
3.And the shipping time may be takes （） days without special situation. It is just for reference
Q Can I return or exchange pipes if there are some unqualified products
A
1.Sorry, we cant provide this service.Before production, please provide details information . And before you place an order,we will send sample to test 2.Through testing , we will arrange the production . Quality control department will test pipe random while the goods be finished. Or we can send random small pieces to test again
3.Our rate of finished products is over 95% and some size are more higher
4.We will send more as compensation if the quantity is beyond the rate of finished products in next order.
Q What is the advantage of your products ?
A
1.The complete production equipment: Pickling tank--Phosphating pool--Annealing furnace--cold drawn equipment--cold rolled equipment-cut-off machine-- straightening machine--Eddy current testing machine--Mechanical teser--Rockwell hardness tester--Chemical analysis instrucments. 2.Production testing : 2-3 times testing during production .Before packaging , Eddy Current Testing Machine test all pipes again. To test mechanical property, hardness 3.Standard sea freight packaging: Internal wrapple with plastic film , external wrapped with woven bags , iron stand 4.The company is famous for its good after sale service.All sales is online 24hours to help you solve the problem ASAP
CONTACTUS
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High-Quality Raw Materials
Good mechanical properties
High Precision
Stable delivery time
