Established in 1948, Laizhou Huayin Testing Instrument Co., Ltd. (Shandong Laizhou Testing Machine Factory) is a professional manufacturer of metal and non-metal materials Hardness Testers. The annual production capacity has exceeded 10,000 sets of Hardness Testers in 6 lines, which are classified as more than 40 different varieties and specifications, and over 100,000 pieces of various standard hardness blocks.The company has passed the approval of ISO9001 for its quality control system. Four kinds of products, which are Model HB-3000 Brinell Hardness Tester, Model HR-150A Rockwell Hardness Tester, Model HRS-150 Rockwell digital display Hardness Tester and Model HV-50A Vickers Hardness Tester, have continuously won silver medals in the nation-wide quality appraisement for 3 times.Besides all kinds of Hardness Testers, we also manufacture and supply Metallographic Specimen Preparation Machines, such as Grinding & Polishing Machine, Cutting Machine, Mounting Press, and Universal Testing Machines, etc.Moreover, our products are selling well in the domestic, American, European, and Asian markets, totally more than 70 countries and regions. Presently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Please feel free to contact us for more details.