Onion Tank, Self Supporting storage tank

About Self Supporting storage tank Self Supporting storage tank also called an onion water tank because it's in the form of an onion. Same with pillow water bladder tank, it does not include any Support bracket. It is made of High Strength PVC material what is the thickness range is 0.7mm-1.5mm, This material is UV-resistance, the temperature resistance is -30~+70℃. All of our material has passed the CE, ROHS, FDA, ISO etc. quality verification. Moreover, such this soft material storage ...