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SKYMECH 1/3 Turbojet Engine Model Kit - Build Your Own Turbojet Engine that Works - WP-85 Turbojet DIY Aircraft Engine Model 100Pcs

Car Engine Assembly Kit DM12B - Electric Car Engine Assembly Kit - Gift for Collection (249Pcs)

SKYMECH PT6A Turboprop Engine Model Kit -Build Your Own Turboprop Engine that Works -3D Printing DIY Aircraft

SKYMECH Pulse RC Jet Engine Micro Valve-Controlled Gasoline Internal Combustion Model with Atomizing Sprayer (RTR Version)

SKYMECH Pulse Jet Engine Medium Valve-Controlled Gasoline Internal Combustion Model Airplane Model Engine

RETROL R01 1/12 Scale Hot Air Pumping Engine Model Water-cooled Stirling External Combustion Engine Mechanical Toy Set

SKYMECH NTR-900 1/30 Turbofan Engine Model Kit - Build Your Own Turbofan Engine that Works - Working Jet Engine 150PCS

Hit and Miss Engine Full Metal IC Engine Model Water Cooled Gasoline Engine with Base Gift Collection