​It is composed of a double raceway inner ring, outer ring, two rows of rollers and a cage, characterized in that both ends between the inner ring and the outer ring are equipped with a sealing ring, sealing ring by the outer ring on the sealing groove
DIN933 is a German standard hexagon bolt, which is suitable for full thread hexagon bolts with a diameter of M1.6-M52. The general carbon steelgrades are mainly 4.8, 8.8 and 10.9. The common standards are DIN931 and DIN933 for metric coarse thread; DIN960
The PLA extrusion lamination machine is mainly designed for the laminating of paper, non-woven fabrics, woven bags and other products. Specially uses for lamination grade PLA, and meanwhile LDPE, LLDPE, PP as coating material are also acceptable , it can