What's the meaning for the mark "LF" or "NF"?

LF: Short for Lead Free

NF: Short for Nickel Free

We have a special Lab and apparatus to check the content of Lead in our products. All the products verified with the information "LF"(Lead Free) have absolutely passed the lead content test by our apparatus.

For the Products mark with “LF & NF"(Lead Free & Nickel Free), we are definite about this item's 100% lead free and nickel free.

In the same way, we offer ROHS and Nickel Free certificates. The certificates contain the details of professional test result analysis.