(Source: Design) 
This sofa is made of polycarbonate plastic, so its transparency is very strong and it looks like glass. However, in terms of touch, it is not as hard as glass, but it is also guaranteed to be sturdy. Guaranteed softness and comfort. 
The sofa is made of a polycarbonate plastic weighing 30 kg and is 190 cm long. It is designed in a slightly curved shape to create a streamlined sofa. 
This sofa has three colors of crystal, white and black, because it has a very strong climate adaptability, so in summer a white or crystal-colored sofa is placed at home, can both embellish the atmosphere of the interior, you can also Create a cool environment. Image from: kartell.com Product Name: Uncle Jack Sofa Design: Kartell spa Company Status: Production
Creative sofa
Automatic Control Solenoid Dosing Pump
*Chemical metering up to 25L/H
*water treatment for Municipal: dosing additives
*Wastewater treatment: dosing flocculants
*Percentage adjustment: local adjust percentage for stroke and frequency 0~100%
*High speed operation: high measurement precisions, up to 360 strokes per minute which eliminate the pulsation effect.
*Compact size: small, quiet and stable operation
*Durable diaphragm: the diaphragm is made by PTFE, which is compatible with all kinds of chemicals. In typical use, the diaphragm can last up to five years, which 5 times as national standard GB/T7782-2008
*Strong stability: working stability in AC 100-240V, and suitable for the range of 50-60Hz
* High protection level: protection level reached to IP65, it allowed pump to provide safe services at severe operaton condition
*Ball check valves: it through double valve ball, seat and sleeve to form the sealing system, that enhance the precision
*Several types: manual control or automatic control, the automatic control(auto-control solenoid pump) can divided to: 4-20mA electric current signal control, digital impulse signal feedback control, digital impulse feedback control with Rs485 communication interface, 4-20mA electric current signal control with Rs485 communication interface.
*Level monitor, low-level shutoff with alarm output
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Zhejiang Ailipu Technology Co., Ltd. , https://www.alipu.com