OD: 4.375x4.375", 5.375x5.375", 6.375x6.375"
ID: 4x4", 5x5", 6x6"
电话:0579-82979553 传真:0579-82979552手机:13566977703邮箱:humin@chinaruiheng.com地址:浙江省金华市金东区孝顺镇双创园双创大道5号