规格：

T14×1/2"F×14
T16×1/2"F×16
T18×1/2"F×18
T18×3/4"F×18
T20×1/2"F×20
T20×3/4"F×20
T25×1"F×25
T25×1/2"F×25
T25×3/4"F×25
T32×1"F×32
T32×1/2"F×32
T32×3/4"F×32