TAG：High Pressure Valve Testing and development

Yongjia Dory Machinery Co.,Ltd was established in 2009 ,during these years dory

Ningbo Taizhun Metal Products Co., Ltd. is located in Beilun District, Ningbo.

QingDao Haibo Punching ＆ Sheet Metal Co., LTD was founded in 1999, which engages

Our company was founded in 1998, specializing in the production of engineering m

Guangdong Chuangxing Precision Fabrication Co., Ltd. is the first national high-

Baoji Mingkun Nonferrous Metal Co.,Ltd (BJMK) is a professional manufacturer of