we can make this whole set product if you send the sample to us, we can similar products like yours, but they're not spring coil, but stainless steel tube.
Or if you only the spring coil, we also can make it for you.
Size, wattage, voltage...etc can be custom make for different needed.
Chat with me and share detail about you requirements, then we can have a aligment for your products.
Thank you!
Wayne Li
WINGTEK GROUP