In the short time that we have opened our new Rahn Plastics Inc website, we have hit over 10,000 visitors in the first two months!! We are overjoyed at the response the new site is generating and we have you, …

Rahnplastics.com hits 10,000 visitors!! Read More »

Many PE pipe and fitting manufacturers use the “Standard Dimension Ratio” – SDR – method of rating pressure piping. The SDR is the ratio of pipe diameter to wall thickness and the SDR can be expressed as: SDR = D …

What is an SDR? Read More »