主營(yíng):
Shandong Kaitai metal abrasive co, , ltd is the biggest manufacturer of metal abrasive in china which integrates with technical research , development and production, cooperating with material &engineering college of Shandong university and guided by experts
主營(yíng):
Ningbo haichuang is located in the internation coastal city, ningbo, we specialize in research&development, manufacturing and selling nanometer photcatalysis air purifiers,