A flush toilet is different from a urinal, which is designed to handle only liquid waste; or from a bidet, which can be used for personal cleansing after toilet use.
Polyvinylidene fluoride (PVDF), commonly referred to as KynarÂ®, is a high molecular weight fluorocarbon that has superior abrasion resistance, dielectric properties and mechanical strength.eneral / chemical grade polyvinylidene fluoride (PVDF) is a high molecular weight fluorocarbon with superior abrasion resistance, dielectric properties and mechanical strength. It is available from 1/2 to 16.
Support. 1  Posterior vitreous detachment (PVD) is a very common eye condition. It's caused by natural changes to the vitreous gel which takes up the space inside the eye. 2  Although PVD causes some frustrating symptoms it doesnât cause pain, harm the eye or cause permanent loss of vision.