We take pride in being a top choice among interior designers, owing to the world’s finest Handle Locks based on quality aesthetic appeal, prevailing in the market. Our product line is specifically des...

No. 3202 Lane 1101 Ninghong Road Minghang District

DQC (Derleo Quality Control Service Ltd) , a well know and professional quality assurance service company in China, committed to providing inspection and other quality technical service from 2001. As ...