1. These are available in grades suitable for both injection and compression molding . 2. The core of the balls are formed by compression molding with chemical reactions. 3. Several European companies began compression molding UHMW in the early 1960s. 4. UHMWPE is processed variously by compression molding , ram extrusion, gel spinning, and sintering. 5. More typically the plastic preform used in compression molding does not contain reinforcing fibres. 6. It uses compression molding and rubber compounding to produce syringe plungers and intravenous equipment. 7. Compression molding is a high-volume, high-pressure method suitable for molding complex, high-strength fiberglass reinforcements.8. The advantage of compression molding is its ability to mold large, fairly intricate parts. 9. Pierced spheres, I don't know about; I could imagine compression molding followed by tumbling for flash removal. 10. The manufacture of non-lead shot differs from that of lead, with compression molding used to create some alloys.