The Leeb hardness tester (HL) only began to be used in metal hardness testing technology in 1978. The Swiss company PROCEQ is the author of the Leeb hardness specification. Its operation is simple and it is widely used in large materials and special structures such as elevators and boilers. Containers, metal warehouse materials, molds, aerospace, transportation, offshore wind power and other permanent assembly parts structure hardness test, not only convenient to carry, but also can use different shapes of impactors to meet different test requirements, and in harsh environments It can also maintain stable testing. Taiwan Nakazawa is the sole agent of the Swiss PROCEQ Leeb hardness tester series. Welcome to inquire.