Welding railroad rails is a crucial process in rail infrastructure maintenance and construction. Welded rails create continuous, smooth track sections that offer numerous benefits over traditional jointed tracks, including reduced maintenance, smoother ri
Properties: According to different diameter, different production requirements, a variety aof special specifications of PVC twin-screw extrude to used. The special designed screw structure, uniform plasticizing, high output.
A4 A5 A6 B6 PU leather diary notebook journal with elastic band and ribbon. Inner paper printing can be with lined,grid,blank,dotted or calendar customized printing. With back paper pocket to put some namecards and stickers