focing point block up 锚块

rail focing point 防爬器

focing point points 锚点

body focing point 人体维持

strengthen focing point 摇桅枕拉杆

wedged rail focing point 穿销防爬器

system focing point bolt 体系锚杆

spring rail focing point 弹簧防爬器

improved focing point bolt 超前锚杆

focing point bolt support 锚杆支护