Dear Sirs: We are designers of watches in the USA and looking for a new watch case and band manufacture and were given your name. We have attached the above case that we will need manufactured shortly. The case dimensions are 22mmx30mm (see attached views) and must be able to pass testing for nickel and lead free. We will need approximately 2000pcs for an initial order. Also attached

Usually, as like the locks parts, we suggest use stainless steel(AISI304/AISI316) to produce it, because it have nice rust resistance and good performance.

Powder metallurgy is a process technology for manufacturing metal materials, composite materials, and various types of products by using metal powder (or a mixture of metal powder and non-metal powder) as raw materials, and through shaping and sintering.

Powder metallurgy oil-impregnated bearings with gears are widely used bearings. They are made by powder preparation, sintering, and the prohibition of lubricating oil. The characteristics of powder metallurgy oil-impregnated bearings with gears are

Preparation of raw materials in powder form. There are generally two types of powder preparation methods: mechanical and physical-chemical methods. Mechanical methods include mechanical crushing and atomization, while physical-chemical methods include electrolytic corrosion

Powder metallurgy products have great competitive advantages in various industries in China! Powder metallurgy parts have been widely used in various industries due to their good physical and mechanical properties

The main reason why powder metallurgy products are prone to rusting is due to exposure to air. When they are exposed to air, they are affected by oxygen and water vapor, leading to chemical reactions on the surface

Powder metallurgy gears are commonly used in various automobile engines, and although they are very cost-effective in large quantities, there is still room for improvement in other aspects. Let's take a look at the advantages and disadvantages of powder metallurgy gears.

Alloys 316 (UNS S31600) and 316L (UNS S31603) are molybdenum containing austenitic stainless steels that are more resistant to overall corrosion and pitting/crevice corrosion than traditional chromium nickel austenitic stainless steels such as alloy 304.