In recent years, people have increasingly attached importance to environmental protection, so while demanding steady economic development, there are also more requirements for environmental protection construction. Building an "environmentally friendly" society has increasingly become an urgent need for people. The country has also increased its efforts to regulate environmental protection to meet the needs of the times. In 2017, China comprehensively strengthened environmental emission restrictions and conducted inspections on the manufacturing industry, forcing nearly a hundred enterprises to suspend trading for rectification. In 2018, the implementation of the "Environmental Protection Tax" resulted in an increase in environmental protection costs for PCB manufacturers.

　　After a round of rectification, some PCB manufacturers who could not meet environmental requirements were forced to withdraw from the market, and those fortunate enough to survive also had higher requirements for environmental monitoring of raw materials on environmental issues. On the one hand, the increase in environmental protection costs leads to an increase in upstream industry chain costs; On the other hand, some small and medium-sized PCB enterprises are forced to withdraw from the PCB market due to environmental non-compliance, causing the balance between supply and demand in the market to be disrupted, resulting in a situation of oversupply and a direct increase in prices.

　　In 2018, the "Environmental Protection Tax" was implemented, and the state legalized environmental protection issues in the form of laws. Environmental monitoring of PCB manufacturers will also become a norm, which has also led to a continuous increase in material prices for PCB manufacturers.

　　PCB important parameters

　　Important parameters are clear at a glance

　　Measurable aperture range: 0.1mm-10mm

　　Minimum measurable hole edge distance: 0.1mm

　　Measurable plate thickness: 0.3mm-10mm, and plates with a thickness less than 0.3mm require sample confirmation.

　　The maximum number of tested boards (round holes): 800000 (JK8000 model), 500000 (JK5200 model)

　　Repetitive accuracy: ± 20 μ M

　　Detection aperture accuracy (circular hole):

　　± 20um (aperture ≤ 1mm)

　　± 30um (4mm>aperture>1mm)

　　± 40um (aperture ≥ 4mm)