4 Sizes Available For All Your Needs – 36 Inch, 24 Inch, 18 Inch, 12 Inch.
Our high-density round Foam Roller 36"(90cm)stood out from the EPP pack as the best basic roller, proving you don`t have to spend a lot to get relief.
Long rollers (around 36inches) (90cm)are versatile and a good choice for your first foam roller. They work well for your back because they are long enough to span your entire back when placed perpendicular to your spine. They`re also more stable than shorter rollers when you`re working on your quads, hamstrings and other body parts.
Shorter lengths (about 24 inches) work well to target smaller areas like arms and calves. The shortest lengths (around 4 - 12 inches) work well for portability and in workout areas with limited floor space.
Solid Foam Roller,Sport Yoga Foam Roller,Cylindrical Foam Rollers,Back Massage Foam Roller Jiangsu Laiao Material Technology Co., Ltd. , https://www.laiaomaterial.com
Ming rod valve and the difference between the dark rod gate valve
Ming rod valve and the difference between the dark rod gate valve: valve stem by the valve structure can be divided into: 1, rod valve: stem nut in the valve cover or bracket, the opening and closing of the gate, the valve stem with a rotary valve to achieve Rod lift. This structure is beneficial to the lubrication of the valve stem, opening and closing a clear degree, it is widely used. 2, dark bar gate valve: stem nut in the valve body, and the media in direct contact. Open and close the gate, the rotary valve stem to achieve. The advantage of this structure is that the height of the gate valve always remains unchanged, so the installation space is small, suitable for large-caliber or gate valves with limited installation space. This structure should be equipped with an opening and closing indicator to indicate the degree of opening and closing. The disadvantage of this structure is that not only is the stem thread unlubricated, but it is also subject to direct media erosion and damage. The main difference: 1, dark rod flange valve lifting screw is only rotating without moving up and down, exposing only a rod, the nut is fixed on the gate, through the screw rotation to improve the gate, there is no visible Of the gate; flange rod valve lifting rod is exposed, the nut close to the hand wheel and is fixed (no rotation nor axial movement), by rotating the screw to lift the gate, screw and gate only relative Rotation without relative axial displacement, the appearance of a gantry. Imported pump Castel wine valve 2, dark rod valve is invisible to the screw, and Ming rod is able to see the screw. 3, the dark rod valve in the steering wheel and the stem is connected together relatively fixed, it is through the valve stem at a fixed point to move the valve to promote upward and gate to complete the opening and closing. Ming rod valve is through the stem and steering wheel thread drive to raise or lower the valve. The simple point is to say that the valve rod is the valve stem together up and down movement, the steering wheel is always at a fixed point. More Search Keywords: Gate valve