生产各种管塞圆形有
圆形有9.5MM 10MM 12MM 14MM 16MM 19MM 20MM 22MM 25MM 28MM 30MM 32MM 35MM 38MM 40MM 44MM 42MM 45MM 47MM 48MM 50MM 55MM 58MM 60MM 62MM 65MM 70MM 74MM 75MM 76MM 80MM 95MM 100MM 110MM 120MM