Qingdao Topwell Chemical Materials Co., Ltd. Pek çok alanda özelleşmiş tedarikçi Ana ürünler:UV floresan Pigment, termokromik Pigment, perylen Pigment, fotokromik Pigment, NIR emici boya
Quality management certifiedTotal staff (9)Finished product inspectionTotal floorspace (100㎡)