Abstract: A low-temperature container, low-temperature tank and low-temperature tank truck are provided. The low-temperature container includes a housing and an inner container disposed inside the housing through a support assembly. The support assembly includes two transverse support structures correspondingly disposed between the housing body and inner container body, and two longitudinal support structures respectively disposed between the outer sealing head and the inner sealing head located at ends. An central lines of the two longitudinal support structures and an central axis of the inner container are collinear, or the central lines of the two longitudinal support structures are parallel to the central axis of the inner container, and the longitudinal support structures may extend and retract in the longitudinal direction of the low-temperature container. The low-temperature container of the present disclosure has balanced support points and good heat insulation effect.

Abstract: A tank type container, comprising a tank (1), two end frames (2) respectively fixed at two ends of the tank (1), and at least one saddle (3) located at the bottom of the outer wall of the tank (2); an upward concave gooseneck hole (27) is formed in the bottom of the saddle (3) for insertion of the gooseneck of a semitrailer front end; and at least one saddle (3) is adjacent to one of the end frames (2), and forms a gap with the end frame (2). The saddle (3) and the end frame (2) are spaced a certain distance, thus greatly shortening the length of the saddle (3), reducing the manufacturing cost of the saddle (3) as the gooseneck hole, reducing the dead weight of the entire vehicle, and improving the competitiveness of the product.

Abstract: A glass-fiber reinforced plastic pipe comprises a pipe body and an inner core fixedly provided on an inner wall of the pipe body, wherein an upper end of the inner core is lower than an upper end of the pipe body, so that a first heat-insulating space is formed between the upper ends of the inner core and the pipe body, and a lower end of the inner core is higher than a lower end of the pipe body, so that a second heat-insulating space is formed between the lower ends of the inner core and the pipe body. Due to the inner core as a reinforce structure, the shear resistance strength of the glass-fiber reinforced plastic pipe is improved without increasing the thickness of the pipe wall, and furthermore the mechanical performance of a supporting device of the cryogenic pressure vessel is improved.