A. Poor after-sales service B. The after-sales service network is underdeveloped C. Provide comprehensive after-sales service D. After-sales service is limited to large cities Answer: C. Provide comprehensive after-sales service
Answer: Common faults include high temperature, low pressure, and motor overload.
Answer: The discharge capacity ranges from [A] to [B] m³/min.
A. Higher B. Lower C. Same as oil injection air compressor D. The answer cannot be determined: B Analysis: Oil-free air compressors do not need to replace lubricants and oil filters, so the maintenance cost is low.
Answer: The GWL Series compressor adopts a low-noise design, with a noise level typically below industry standards, depending on the model and operating conditions.