BRT2/BRT3支撑环支撑环的公称尺寸NOK代码dDtBRT2BRT38182GN4773-V0GN0725-V010202GN4774-V0GN0733-V014242GN4775-V0GN0745-V015282GN4776-V0GN6445-V016262GN4777-V0GN0751-V018262GN4778-V0GN6377-V018312GN4779-V0GN6446-V020282GN4780-V0GN6447-V020302GN4781-V0GN0762-V020332GN4782-V0GN6448-V022352GN4783-V0GN6449-V022.4302GN4784-V0GN6450-V022.4332GN4785-V0GN6451-V023.531.52GN4786-V0GN6452-V025352GN4787-V0GN0781-V025382GN4788-V0GN6453-V025.535.52GN4789-V0GN6454-V027403GN4790-V0GN6455-V0)