午夜婷婷激情,国产精品一区二三区三亚,激情综合激情五月俺也去,中文字幕无码日韩专区

×

Butter pen (mark pen)

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list

Product Name: no butter pen.
Detailed description: the inextinguishable butter pen is a never fading marker, which can be used in all tests.
There are four colors of yellow, red, black and green.
Product size and packaging: 6 thick pen per box. Fine pen 12 pieces per box.