NO.ZH-A39-2 38MM Double-Roller Clutch(Heavy Type)

38mm heavy-duty roller clutch, In addition to the difference on the surface, the internal spring part is also very obvious. The internal part of the heavy duty is the iron core, the plastic part is nylon or POM, the bracket is metal, and has been treated with powder, and it is also the way of opening and closing up and down. Suitable for larger Windows.

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