The mother of nylon lock, metal lock master, K cap, hex nut, cap-shaped, butterfly hats and all kinds of washers, retaining rings, pins and so on.
尼龙锁紧母、金属锁紧母、K帽、六角螺母、盖帽形、蝶形帽及各式垫圈、挡圈、销类等。
2
Heel cap: Should be anatomically shaped, padded but firm, preventing foot from twisting over.
后跟港宝：要求合理地成型，垫护，并且要求牢固，以阻止脚向外扭。
3
The protective housing has a lower part with at least one suitably shaped cavity for holding the metering unit (s) in a stable position and a cap-type upper part.