Metallurgy & Foundry Experienced Manufacturer Low Sulfur Low Nitrogen Petroleum Graphitized Petroleum Coke GPC. Multiple Particle Sizes: Available in 0-1mm, 1-5mm, 3-8mm, and 8-26mm to suit various needs. OEM and ODM Services: Full customization, minor customization, and flexible options from samples or designs. ISO and CE Certified: Product meets international quality standards with ISO and CE certifications. Fast Sample Delivery: Samples available for quality check with delivery time of 3-10 days. Competitive Lead Time: Mass production lead time is 7-15 days, or 15-20 days for licensed graphite items. Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments.