... short leadtime Code: B-222Product Name: Pre-grinding powder of White Ground Coat Enamel1,Material Ratio in Grinding:Pre-grinding Powder ... ,Specification:These products are 40-50 mesh reddish-gray and white powder,there will be 15-20g residue left when pass ... to achieve an ideal effect.3,Indexes and Parameter: Appearance: white powder, the coating is smooth and without bubble structure after ...