GPI has surface coating and Heat treatment facilities required for manufacturing of  API 6A & 6D Valve assemblies.

• Manganese and Zinc Phospheting
• Xylan Coating
• Everslik Coating
• Electro-Less-Nickel Plating
• Shot blasting
• Sand blasting & Grit Blasting
• Humidity Controlled Painting Booth
• Hard-Face Coating
• Zinc Plating