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.
Understanding posterior vitreous detachment. Posterior vitreous detachment (PVD) is a change in your eye which does not normally cause sight loss. It is very common and most of us will develop it at some point in our lives. Although it can cause some frustrating symptoms, PVD doesn't cause pain, harm your eye, or change the way your eye works.