That is too soft mattress, too soft mattress, people will sag as soon as they lie down, changing the normal curvature of the human body, causing the spine to bend or twist, so that the related muscles and ligaments are tightened and long Time is not fully relaxed and rested, resulting in a feeling of backache and leg pain.
A comfortable mattress is a kind of sleep posture, the spine can maintain a straight stretch, and the pressure is equal. People lying on the whole body can fully relax. In order to improve the comfort of human sleep, the partition design of the mattress is also developing. The original three-zone and five-zone mattresses have developed seven sub-zones and nine-zone mattresses, each with its own characteristics.
The original three-zone mattress is only suitable for people who are sleeping on the back. Compared with the three-zone mattress, the five-part mattress is more suitable for sleeping on the side, and a good mattress is suitable for various sleeping positions, so There are now seven-part, nine-part mattresses.
The seven-part mattress ensures the comfort of the back waist, so that the spine is naturally soothed and straight, without causing pain in the back waist arching or bending. The mattress at the buttocks is soft and has good resilience. It does not cause the spine to bend and cause discomfort. It relieves the pressure on the spine and is comfortable to sleep on the side. The knee needs more stability and provides sufficient support for the calves and ankles. Partially different support forces reduce and relieve foot pressure and make it more comfortable.
The other is the nine-zone mattress, zero-pressure ridge, scientific division support, to create a healthy and comfortable sleep. Designed according to the different characteristics of the head, neck, shoulder ribs, waist, waist, vertebra, hip, leg and foot. It can fully adapt to the natural curve of the human body, support the body, relieve stress and protect your spine. Health and promote deep sleep.
Only a professional ridged mattress can perfectly sense the different pressures of various parts of the body to provide better support. The partitioned mattress makes the mattress more professional and protects the ridge, ensuring that the spine and the mattress are perfectly fitted to maintain the best condition. The Prandini mattress is like this, partitioning the ridge to make the mattress understand you better.
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PP Diaphragm Valve have two types, model PV111 by flange end and model PV113 by socket fusion connection. For PP material we offer PP-GF and PP-H, PP-GF is fiber glass reinforced PP, and PP-H is a kind of modified PP which is better in corrossion resist property. PP Diaphragm Valve size from 1/2" to 10", working temperature up to 95 degree, it is a regular type of plastic diaphragm valves, PP-GF diaphragm valve used for water treatment, mining factory, and PPH Diaphragm Valve used for steel plant, chemical factory, ect.
Ningbo RMI Plastic Co.,Ltd offer PP diaphragm valve with specification:
Size range:DN15~DN250 (1/2 inch ~ 10 inch)
Body materials:PPGF,PP-H
Diaphragm material:PTFE,EPDM,FPM,NBR,NR
Connection: Flange ANSI CL150, JIS10K, DIN PN10; Socket: DIN, ANSI, JIS
Design pressure:0.25~1.0Mpa (PN2~10 bar)
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Ningbo RMI Plastic Co., Ltd. , https://www.rmiplast.com