LAIZHOU HUAYIN TESTING INSTRUMENT CO., LTD.

Laizhou Huayin
Testing Instrument Co., Ltd. is a professional company producing
metal and non-metal materials Hardness Testers with a history of
over 60 years. The annual production is over 10,000 sets of
Hardness Testers in 6 lines which are classified as more than 50
different varieties and specifications and over 100,000 pieces of
various Hardness Standard Blocks. The company has passed the
approval of ISO9001 for its quality control system. Four kinds of
products have continuously won silver medals in the nation-wide
quality appraisement for three times. Besides all kinds of
Hardness Testers, we also manufacture and supply Metallographic
Specimen Preparation Machines, such as Grinding [Detailed introduction]