ປະຫຍັດ $30.00 (16% ສ່ວນຫຼຸດ)
Retro All-metal Vertical Twin-Cylinder Steam Engine Model with Dynamic Balanced Crankshaft RTR STEM Model
$159.99
$189.99
ສິນຄ້າ:208
ຄວາມນິຍົມ:1338
ປະຫຍັດ $100.00 (10% ສ່ວນຫຼຸດ)
ENJOMOR L4 Engine GS-L4 36cc DOHC Inline 4 Cylinder 4 Stroke Water-Cooled L4 RC Gasoline Engine Model that Works - Speed Up to 12,000rpm
$899.99
$999.99
ສິນຄ້າ:238
ຄວາມນິຍົມ:1325
ປະຫຍັດ $100.00 (17% ສ່ວນຫຼຸດ)
KACIO LS2-13S Vertical Steam Engine 2-cylinder Reciprocating Steam Engine with Oil Cup Reverse Rotation Steam Model Boat
$499.99
$599.99
ສິນຄ້າ:308
ຄວາມນິຍົມ:1318
ປະຫຍັດ $20.00 (15% ສ່ວນຫຼຸດ)
ENJOMOR Retro Metal Steam Engine with Boiler - Vertical Transparent Cylinder Steam Engine Model - STEM Toy
$109.99
$129.99
ສິນຄ້າ:268
ຄວາມນິຍົມ:1289
ປະຫຍັດ $5.00 (8% ສ່ວນຫຼຸດ)
Mini Metal Mechanical 4-stroke Internal Combustion Engine Model Toy for Educational Experimental Science Demonstration
$59.99
$64.99
ສິນຄ້າ:278
ຄວາມນິຍົມ:1249
ປະຫຍັດ $20.00 (18% ສ່ວນຫຼຸດ)
ຊຸດຕົວແບບເຄື່ອງຈັກ Stirling ເຄື່ອງສູນຍາກາດທີ່ມີການອອກແບບເຮລິຄອບເຕີ Single Stirling Engine Armored Edition
$89.99
$109.99
ສິນຄ້າ:309
ຄວາມນິຍົມ:2116
ປະຫຍັດ $2.00 (15% ສ່ວນຫຼຸດ)
ມໍເຕີເລີ່ມຕົ້ນດ້ວຍ 12 Pinion Gear ສໍາລັບ Cison Inline ເຄື່ອງຈັກສີ່ສູບ
$10.99
$12.99
ສິນຄ້າ:309
ຄວາມນິຍົມ:1993
ປະຫຍັດ $4.00 (12% ສ່ວນຫຼຸດ)
3D Metal DIY Mechanical Cute Dinosaur Model Kits Gift for Kids
$29.99
$33.99
ສິນຄ້າ:289
ຄວາມນິຍົມ:1786
ປະຫຍັດ $40.00 (13% ສ່ວນຫຼຸດ)
M12B 1.6cc Mini Water-cooled Single-cylinder 4-stroke Gasoline Engine Upgrade Internal Combustion Engine Model
$259.99
$299.99
ສິນຄ້າ:229
ຄວາມນິຍົມ:1759
ປະຫຍັດ $300.00 (10% ສ່ວນຫຼຸດ)
ENJOMOR V8 GS-V8 78CC DOHC Four-Stroke V-Shaped Eight-Cylinder Water-cooled Electric Gasoline Internal Combustion Engine Model - V8 Engine Model That Works
$2599.99
$2899.99
ສິນຄ້າ:309
ຄວາມນິຍົມ:1748
ປະຫຍັດ $50.00 (14% ສ່ວນຫຼຸດ)
M17 1.6cc Mini Micro Hit and Miss Engine Evaporated Water-cooled 4 Stroke Horizontal Gasoline Engine Internal Combustion Engine Model
$299.99
$349.99
ສິນຄ້າ:279
ຄວາມນິຍົມ:1709
ປະຫຍັດ $10.00 (11% ສ່ວນຫຼຸດ)
ຊຸດຕົວແບບ 3D Mechanical Bionic Beetle Assembly with LED Lighting Eight-Cylinder Engine
$79.99
$89.99
ສິນຄ້າ:309
ຄວາມນິຍົມ:1693