Ultra-Silence Pulleys Highly Performance Pulley for Indoor and Outdoor Heavy Load Capacity Roller Roller

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Delicate pulley rollers are and for long term use The top rings can be rotated 360degrees at will The pulleys are heavy duty stainless steel, resistance, resistance, and rust resistance The flexible pulley with heavy duty capacity are suitable for wide range of applications Used for mobile doors, sliding doors, sliding and machine parts, Manufacturer: SHANGYAKEJI