常用材料结构 Regular Material Structures：
OPP/AL/PE
PET/M-PET/PE

可选功能 Optional Features:
各式加嘴，异型，易撕线，冲孔/手挽，哑光（局部/全面)
various spout, custom-shaped, easy-tear score, handle/hang hole, (over-all/part)Matt effect