First, the type of test 1. External characteristics test: type test, factory test type test: running test, performance test, cavitation test, noise test 2. Internal characteristic test: speed field measurement, blade surface tension measurement, flow display and pressure pulsation measurement. Strength test: axial force radial force measurement, hydraulic torque measurement 4. Other project tests: seal test, material test and energy balance test, etc. Second, the test device
Christmas Mini Light String is waterproof and durable. Can be used in any season and many applications such as wedding, party, garden etc. We have different wire model and Replacement Bulb type to choose.
Decorative string lights are not just for holidays anymore . Instantly transform indoor and outdoor spaces with a wide selection of covers and finishes that match current trends and personal tastes and expressions.
Celebrate any season ,event or inspired whim with a charming new set of outdoor string lights!
Mini Light String,Mini String Lights,Mini Led Christmas Lights,Led Mini String Lights
DONGGUAN JIANXING LIGHTING ELECTRIC APPLIANCES CO., LTD , https://www.rslightstring.com