Gg Pdf — 1 Pa

"PA GG-1" refers to the Pennsylvania Railroad GG1 electric locomotive .

"Grit Gauze" indicates a mesh with a relatively thick thread diameter and a square weave, making it durable enough to handle heavy loads and "gritty" particles. Typical Specifications (from PDF data) 1 PA GG pdf

It may appear as a shorthand for specific Professional Associations or General Guides in niche PDF documents, though the milling mesh is the most prominent technical use for "1 PA GG". Milling / Müllerei "PA GG-1" refers to the Pennsylvania Railroad GG1