ʻO Qingdao sainuo kahi hui kūloko e hana ana i ka r&d a me ka hana ʻana i ka wax Polyethylene, Wax hoʻololi kūikawā, EBS, Stearate a me nā huahana lubricating a hoʻopuehu.Mai ka hoʻokumu ʻana o ka ʻoihana ma mua o 10 mau makahiki, ua kūpaʻa i ka hoʻomohala ʻana i ka ʻenehana hana ...
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