Transit Penn provides a range of contact rail insulators and associated products for rail transit systems. Content Coming Soon. Contact Us PENN COMPRESSION MOULDING, INC. NORTH CAROLINA 309 Components Drive, Smithfield, NC 27577919.934.5144 PENNSYLVANIA 540 Pacific Street, Irwin, PA 15642724-863-6400 Inquiry@PennCompression.com Follow Us Facebook Twitter SUBMIT YOUR PROJECT / NEED Name Email Phone Company Subject Project for Penn CompressionPenn Compression to QuoteQuestion for Penn CompressionOther Upload File Your Message Submit