Hair pin is also named R pin , a straight steel rod is made into R shape , Hair pin is used for different pins that have a hole on the end to hold the pins not back out .
Materials
1. carbon steel
2. stainless steel
3. spring steel
4. brass
5. aluminum
6. Copper
Specification
| diameter | length | hardness/HRC | material |
| 1.5 | 5 | 50 | alloy steel |
| 2 | 5 | 50 | alloy steel |
| 2.5 | 6 | 50 | alloy steel |
| 3 | 6 | 50 | alloy steel |
| 3.5 | 8 | 50 | alloy steel |
| 4.0 | 10 | 50 | alloy steel |
| 4.5 | 15 | 50 | alloy steel |
| 5.0 | 20 | 50 | alloy steel |
| 6.0 | 25 | 50 | alloy steel |
| 8.0 | 30 | 50 | alloy steel |
Finishings for drive pin
1. Plated Zinc
2. Plated nickel
3. Plated copper
4. Plated brass
5. Plated chrome
6. Plated cadium
Material introduction
1. Wide application
Carbon steel is widely used for various building and project structure , and the bracket of factory , and bridge , car , vessel and steel tower and so on.
2.Easy to process
“C” element of the carbon steel is very few , the hardness is not as the stainles steel and this fits for different process methods .
3. Convenient for plating
Most carbon steel products have to be plated with various platings like zinc , nickel , brass and oil etc to keep the products without rust and long service performance .
4. Best cost
Carbon steel is the best cost in all the steel materails with good quality .
5. Enviroment friendly
All chemical elements and surface treatment are meet for the relative standards .eg , GB , ROSH etc
6. Perfect stability
Inside components and instructure of part are reformed after quenching , keeping this status long time , and that make part satisfied expect requirements .
7. Easy to welding
Alloy element of carbon steel belows 5% this make welding is very easy to be done and get good apperance .
Control Quality
(1) Checking material before feed in
all material must be checked according to the requirements of products before put them onto the machines to ensure material is available .
(2) IPQC ( by handle and auto-machined control )
The semi-finished products must be checked in special tools during production , this ensure products are always under control .
(3) Chemical elements analysis and fhysical testing after post treatment
The most metal products need post treatment after finished proudct, all products will be tested after than to make sure the quality of products are meet the related requirement .
(4) The second inspection , sort all finished goods by sorting machines if required ;
All goods were finished , they must to be tested and checked before package ; In this phase , goods will be checked in full inspection or partial inspection . and checking methods can be by handle or auto-machines .
(5) Packing
Packed in polybags and cartons or in small color bags .
(6) Last inspection ( spot checking , packages status , quantity etc )
When all goods are ready , we will make a final inspection for quantity and package’s status .
(7) Delivery
Everything is ready , we will deliver goods to appointed place or port according talking
Packing
1. In bulk
chipboard cartons with belt on the outside
Items are packed in apparent polybags and solid cartons then , usually 3-5 bags in each carton and the gross weight is about 15 kilograms .
The sizes of the carton
20x28x16
16x18x25
20x22x28
16x18x28
Application
This package is usually for private use in the factory to assemble parts
Advantage
1) suitable for production line in the factory
2) big quanity each bag
3) low cost on package
2. Box
Items are packed in boxes inside and some boxes to a carton , the boxes would be colored or plain . 10-15 kilograms each carton . it contains plastic box and chipboard box . and both kinds of boxes can be print the customer’s logo .
Application
Box package is usually for sales in store .
Advantages
1) Individual packing
2) Customization design
3) Easy to sales
4) easy to check
5) easy to carry
6) not easy broken
7) beautiful apperance.
FAQ’s
Q. How about your capacity ?
A. With scale of ten thousand square meters , different processing machines , we are able to finish up to 2000 tons raw material every year , generally , one full 20 feet container ( about 20 tons) can be done in 20- 25 days .
Q.How long I can get samples for approval before placing order ?
A. Let you get and confirm samples in first time is our reponsiblity and pleasure , just in one week for new samples that need to be done in new tools , and we can deliver samples within 24 hours for exsiting samples once received your request .
Q.What are your popular payement menthods ?
A. T/T is our prior choose for all , of course , we are also accept L/C , Westunion , paypall .