Enterprises

Integrated efficiency (CCR)

Pure technical efficiency (BCC)

Scale efficiency

Returns to scale

Efficiency rating

Haibo Electric

0.873

0.912

0.957

Increasing

Relatively high

Longgang Pump Industry

0.524

0.586

0.894

Increasing

Moderate

Durable Watches

0.921

0.935

0.985

Constant

High

Boan Bio

0.945

0.968

0.976

Constant

High

Blue Sky Titanium

0.786

0.823

0.955

Increasing

Relatively high

Zhenghai Bio

0.612

0.658

0.930

Increasing

Moderate