The seamless titanium tube is made by extrusion process, and the welded titanium tube is made by plate crimping.Generally, the wall thickness of seamless titanium tube is determined according to the maximum mold diameter of titanium ingot, and the advantage is good air tightness.

The smallest thickness of Tantalum sheet is 0.025mm , Normally we call it Tantalum foil with the weight 1kg or 2kg per roll ,
The thickness less than 0.1mm , can be made into foil ,
The thickness more than 0.1mm , can be made into straight sheet ,

controlling annealing temperature (>=2 times normally)
Using different annealing method.
Put in level, using heavy block above them in the vacuum furnace, to ensure the better flatness.
Put in circle, without anything above them, the surface is shinny and perfect, without any stain.
Put just 1pc for annealing, cost is high) if you have enough money
choose good carbide blade, do polishing, grinding, use CNC machine, etc

Usually the lead time is within 10-30 days，which is determined by the products and quantity. We can also delivery the goods in batches if you need.

Yes, when we get your inquiries, not only we will evaluate the more competitive price, but also we can get the most reasonable delivery time. So the prompt delivery can be guaranteed.

In general, we use plywood case or carton boxes. We also put some soft materials inside to prevent possible damage on products.