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SinoFeng Educational Apparatus Int'l Limited
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Address:HONG KONG,CHINA
Specification:10.2 x 6mm, 15 x 7mm, 20 x 8mm,25 x 9mm, 28 x 9.5mm, 30 x 10mm, 40 x 15mm, 50 x 20mm, 70 x25mm
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