Do you have any data that you can share that demonstrates a significant difference between Chinese made steel coils compared to Canadian made?Updated 6 months ago

From our experience in the bedding industry, Chinese made pocket coils are often made from recycled materials. This results in the coils breaking down much quicker and being less supportive. Whereas Canadian made coils are not from recycled materials and are double tempered resulting in a longer lasting more supportive base to the mattress. You can read up on engineers responses here - https://www.reddit.com/r/AskEngineers/comments/4b5jir/people_say_chinese_steel_is_poor_quality_what/