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Material: aluminum alloy, stainless steel, galvanized plate., Diameter, height, axle holes depond on client requirements - details see: https://www.machineto.com/enhanced-single-inlet-wind-wheel-impeller-10247908

Specifications	Diameter(mm)	Height(mm)	Axle hole(mm)	Blade number
1.6	160	70	14	32
1.9	190	100	19	32
1.9-1	194	90	19	32
2	200	90	19	32
2.3	230	100	24	32
2.5	250	100	24	32
2.7	270	117/98	24	32
2.8	280	120	24	32
3	300	150	24	32
3-1	300	195	24	32
3.5	350	150	28	36
3.5-1	350	195	28	36
4	400	150	28	36
4-1	400	287	38	36
4.5	450	195	38	36
5	500	287	38	36
5.5	550	287	38	42
6	600	287	42	42