Nickel Strip Vendors

I am on the hunt for 25.5*0.15 nickel strip. Nkon is sold out, I bought 1kg off amazon but it looks very dubious to say the least (more like steel strip). Where are guys buying the nickel strip besides on Nkon?

I have ordered 4kg from this seller on Alibaba:

price with shipping was very good, bought 2 different width. try messaging them and make a deal.

also tested with salt water test and later on professional lab equipment and results were same as with strips from nkon, so these are 100% legit.

I bought from this vendor on E-bay. It passed my spark test I did on the grinding wheel.