... 90% injection mould exported to foreign pp injection pipe fittings mold pipe fittings mold namesize90 degree fitting-injection elbow mold Φ 4090 degree ... the basic informations for reference: Name pp injection pipe fittings mold mould material45#,P20,H13,718,2738,NAK80,S136 etc ... good after-sale service and necessary spare parts. 4.we made near 500 sets moulds per year. pp injection pipe fittings mold