Paper Sprue & Runner — Smooth Casting, Pure Castings

Lightweight and easy to cut, quick to install, with a tight, leak-proof socket assembly, greatly reducing labor intensity; Completely burns away after pouring with no residue, making sand removal easier and environmentally friendly with no dust pollution; Compared to traditional gating systems, it has a lower overall cost and is compatible with cast iron, cast steel, and various casting processes, making it an ideal choice for improving quality and reducing costs.