2. Screw Elements Materials:

※ For wear application:
Tool steel: W6Mo5Cr4V2
PM-HIP materials: SAM10, SAM26, SAM39, CPM 10V,CPM9V.
※ For corrosion application:
Nitrided steel: 38CrMoAl
PM-HIP materials: WR4, SAM26, SAM39, CPM 10V,CPM9V.
※ For wear and corrosion application:
PM-HIP materials: SAM26, SAM39, CPM 10V,CPM9V
※ Other materials:
304, 316L, C276 etc.

3. Why choose us?
1). Total solution of highly wear-resistance and corrosion-resistance problems;
2). Expert of engineering design and consulting,
3). Advanced manufacturing capabilities and technology,
4). Lean production management
5). Top quality products with high cost performance

4. Our factory
Our factory is state-of-the art and spans over 20,000 square meters. The factory houses more than 130 sets of different domestic and foreign high precision production equipment, with the degree of numerical control up to 95%.

5. Heat treatment

heat treatment is very important in the screw production process. In order to ensure the quality of products, Joiner has purchased professional heat treatment equipment to produce, so that we can control the construction process by ourselves. In China, we are the only company that does heat treatment by ourselves, and the heat treatment of screw components made by Nanjing factory is processed by outsiders, so the quality of products can not be completely guarantee.

6. Packing Details: According to your order quantities and products sizes to choose wooden boxes or cartons to pack:

1. Rust-proof oil processing,
2. Oiled paper packages,
3. Bubble wrap package,
4. Special foam packaging,
5. Packing,
6. Sealing

7. Testing Reports
We will send Inspection reports for every our customer.
a.General Dimension Inspection Report
b. Material certificate for customer.

8. Service Network Assurance

We have a professional sales team who can quickly understand the real needs of customers, and put forward reasonable solutions for them. The company not only offers supportive services for both domestic and foreign brands, but also provides retail services to outstanding end customers in the industry. Now Joiner products are exported to more than 30 countries including countries such as Europe and America.