... production lines (4 for each section type: round, square, and rectangular) and a work staff of 500 members. We are only 73 ... , 52min’s drive from Tianjin Airport, and 180km, 90min’s drive from Beijing Capital Airport. So you are much welcome to visit ... , pipe polishing, welding beam removing, pipe end PVC capping, threading and so on. Standard: GB, BS, AISI, ASTM, API, DIN, JIS, EN, GOST ...