Threadless insulators created among the early 1850s to 1860s cost extra than insulators with thread and later models. Sadly, there are just about a couple of of them left. Additionally, you’ll obtain its trade name, “the CS carrier,” inscribed on the skirt with a ‘PYREX’ logo. The Pyrex CD-128 has a clear colour and a load capacity of only 1 wire. The insulator has two sets of threading that let y