뭔 차이임????


https://ko.aliexpress.com/item/1005005209973776.html?spm=a2g0o.detail.0.0.5268MbjTMbjTlp&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40000.327270.0&scm_id=1007.40000.327270.0&scm-url=1007.40000.327270.0&pvid=51a2437a-4580-4bde-a76a-48f0a8de5621&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40000.327270.0,pvid:51a2437a-4580-4bde-a76a-48f0a8de5621,tpp_buckets:668%232846%238110%231995&pdp_npi=4%40dis%21KRW%2186477%2142425.0%21%21%21455.37%21%21%402141112416986731480946266e5f4d%2112000034547244109%21rec%21KR%211838774513%21


이게 AIRCODE 라고 찍힌거고 150mm 짜리


카본레일 6만원



https://ko.aliexpress.com/item/1005005843482948.html?spm=a2g0o.detail.0.0.3697nwkNnwkNSg&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40000.327270.0&scm_id=1007.40000.327270.0&scm-url=1007.40000.327270.0&pvid=ff23914f-bc1a-4744-a906-0b948e96c170&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40000.327270.0,pvid:ff23914f-bc1a-4744-a906-0b948e96c170,tpp_buckets:668%232846%238110%231995&pdp_npi=4%40dis%21KRW%21149222%2173119.0%21%21%21785.77%21%21%402141112416986730171152722e5f4d%2112000034547875088%21rec%21KR%211838774513%21


이게 RYET  라고 찍힌거고 카본레일 7만원에 143 mm





이거 사이즈 차이 말고 품질 차이도 있는거임??? 아니면 사이즈 차이만 있는거임???