Addi Turbo nickel or stainless steel?

I red on this link that in France whe can purchase Addi Turbo Needles for the price of 5,2 euro ) 6,67 $ USA ! Is there different varieties of these metal needles, nickel and brass and stainless steel ? The price is so low compare to the price here in America.
There are not bamboo, for those who do not read french it is writing: acier = stainless steel !