Our company was integrated from Kingdream public limited company in 2002. We have been engaged in R&D and manufacture of PDC for more than 20 years and established a whole product line. The product has past ISO 9001. We are the specialist of PDC for Petroleum, Geography drilling purpose. Our products and service have enjoyed very good reputation from our customers all over the world. We can offer you the excellent product and best service with a competitive price