On April 18, 2018, our company independently developed and produced 5 grades of non-longitudinal ribbed rebar resin anchor rod products, which passed the certification of the National Mining Product Safety Marking Center of Safety Standards, and the validity period is five years. This is a postponed review, and the evidence collection time is from April 9, 2013 to April 9, 2018.

　　The certified level is:

　　MSGLW-335/16, 18, 20, 22, 25

　　MSGLW-400/16, 18, 20, 22, 25

　　MSGLW-500/16, 18, 20, 22, 25

　　MSGLW-600/16, 18, 20, 22, 25

　　MSGLW-700/16, 18, 20, 22

　　The successful passing of the mining product safety mark certification once again shows that our company’s products have stable performance and excellent design.