Specification:
• Measure Vrms, lrms, W, PF, Hz;
• Harmonic distortion analysis for voltage & current, display total harmonic and 0-50 times;
• Component harmonic, selectable for absolutely or relatively harmonic display;
• Voltage range:10.0-600.0V, Current range:0.010-20.00A, Auto

Specification:
• AC-DC-AC frequency conversion technology
• Digital wave synthesis, wave feed-back technology, low power distortion
• Controlled and tested by 16 bits MCU, which has high automation
• High speed 12 bits A/D sampling technology, exactly display Voltage, Current, Power,

Digital hearing aid 438 (new)
Full digital circuitry
Air conduction
Feedback reduction
Micro BTE design
Left & right ear adjustability
Digital volume control
High & low tone control
yohowheelchair03@163.com

Digital hearing aid 838
Specification:
Digital circuitry
Mini BTE design
Air conduction
Left and right ear adjustability
Digital Volume control
High or low tone control
Product size: 55x35x10mm
Weight: 4 g
Max. saturation sound pressure level(SSPL): 130dB±4dB
Full on Acoustic Gain:

Digital hearing aid 638
Specification:
Digital circuitry
Mini BTE design
Left or right ear adjustable
Detachable receiver
Digital Volume control
High or low tone control
Product size: 55x35x10mm
Weight: 7g
Testing Item Indicator
Max. saturation sound pressure level 130dB±4dB
Rated

Ceramic Ball mill adopts energy saving design, owning the advantages of stable operation, fully enclosed and pollution-free. Ball mill is mainly

Ball mill is the key equipment for grinding after the crushing process, which is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer,

Introduction of Flotation Ball mill:

The Flotation Ball mill working principle:
The Flotation

Introduction of Intermittent ball mill:

Intermittent ball mill is applied to the grinding of feldspar, quartz, clay, silica and other hard and brittle materials. There are both

Slag ball mill is the key equipment to smash after the material being broken.ball mill is widely used in cement, silicate product, new building materials, refractory material,

Introduction ofWood Powder Machine :

The new Wood Powder Machine developed by Henan Kefan miming machinery Co., Ltd., is based on the advanced technology of congeneric

Introduction of Raymond Mill :

Raymond Mill(Raymond Grinder) is relevant towards the grinding and processing of more than 280 types of non-flammable and non-explosive