规格：

S14×1/2"M
S16×1/2"M
S18×1/2"M
S18×3/4"M
S16×3/4"M
S20×1/2"M
S20×3/4"M
S25×1/2"M
S25×3/4"M
S25×1"M
S32×3/4"M
S32×1"M
S20×1"M