If it is stipulated that it should be licensed (approval), the business shall be conducted with the permit (approval) document after being approved by the approval opportunity; if the laws, regulations, and decisions of the State Council stipulate that no approval (approval) is required, the market entity shall choose to operate independently. Production: high and low voltage complete sets of electrical harmonic lifting equipment; sales: high and low voltage complete sets of electrical switchgear, power transformers, automation control equipment; power engineering.
"