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.
Posterior vitreous detachment, or PVD for short, is a degenerative change in the vitreous humor of the eye. It is very common and will occur in virtually everybody as age catches up.Most of the time, it occurs without causing any acute or long-term visual problems.osterior Vitreous Detachment. Posterior vitreous detachment, or PVD for short, is a degenerative change in the vitreous humor of the eye. It is very common and will occur in virtually everybody as age catches up. Most of the time, it occurs without causing any acute or long-term visual problems.