Generally, fluorine cylinders are coated with corrosion-resistant alloys on the inner diameter, injection end face, and hopper mouth, and other parts are nickel-plated or similar. However, in more adverse environmental conditions, cylinders must be manufactured entirely from Hastelloy. Using all Hastelloy makes handling difficult due to the high material and processing costs, and the biggest problem is that the cylinders are large in size, making it difficult to obtain the raw material itself. We can solve this problem with Hastelloy by using multi-layer HIP.