Product Description:

Material: Stainless steel
Aluminum alloy
Metal frame
Metal chrome
Metal carbon

Size: 13(330 MM), 14(350 MM), 15(380 MM), 16(410 mm), 17(430 mm),
18(450 mm), 19(480 mm), 20(510 mm), 21(530 mm), 22(550 mm),
24(610 mm), 26(650 mm), 28(710 mm)

Patents: China

Characteristics: 1. Slient and judder free operation
2. Easy to install