Hei Yan is a professional manufacturer on elbow machine,expanding machine,hydraulic press,tee machine. 

Cangzhou, east to Bohai,north to Beijing and Tianjin, is located in the central zone of Bohai rim. Considered as the first open region, Cangzhou is the communication center from Beijing to east sea regions.
Relying on convenient transportation,Cangzhou people utilize wisdom to exploit this

nurtured land.With thousands of years' development, Cangzhou is renowned for its martial arts, acrobatics on social arts, Chinese date, pear on agriculture, pipe fittings, machinery on industry.
Since the open policy in 1978, Cangzhou has established friendly relationship with more than 100 countries and regions, not less than 150 industrial products exporting to international market.
Welcome all guests to visitCangzhou and negotiate business.