Abstract: A multilayer tube is provided for use in with transmission oil or heating and cooling fluid applications in motor vehicles. The multilayer tube has an outer layer comprising an aliphatic or an aromatic polyamide to provide protection from the outside environment; a middle layer of a lower cost material that comprises from 20-90% of the thickness of the tube materials; and an inner layer that has excellent resistance to transmission oil or glycol coolant and temperature.

Abstract: The present disclosure comprises a multi-layer tube that withstands temperatures up to 135 C in glycol heating and cooling systems for electrical, hybrid or internal combustion vehicles. The materials are chosen for their combination of resistance to permeation and coolant resistance. The thermoplastic material is selected to facilitate extrusion and provide a low cost, robust multi-layer tube for any high temperature glycol cooling system applications.

Abstract: An LED device includes a circuit board with a control module, LEDs arranged on the circuit board, a cover member provided over the LEDs, a reflective member provided between the circuit board and the cover member, a speaker provided on a side of the circuit board opposite the LEDs, and sensor electrically connected to the control circuit and configured to generate a signal based on sound generated by the speaker to control lighting modes of the LEDs. The control module is electrically connected with the LEDs to control lighting modes of the LEDs, and an reflective member is provided between the circuit board and the cover member. The reflective member is provided with a plurality of through cavities corresponding to each of the LEDs.

Abstract: The present disclosure provides a multi-layer tube comprising a polyamide outer layer, a polyolefin intermediate layer and a thermoplastic elastomeric inner layer. The polyamide outer layer provides sufficient mechanical strength and the polyolefin intermediate layer shields the polyamide from contact with water to avoid hydrolytic degradation. The thermoplastic elastomeric inner layer guards against stress cracking in the polyolefin intermediate layer and provides an excellent seal for connection.

Abstract: The present disclosure comprises a multi-layer tube including an inner layer comprising a thermoplastic material, an intermediate layer comprising high density polyethylene (HDPE); and an outer layer comprising a thermoplastic material. The HDPE intermediate layer is sandwiched between the outer layer and the inner layer of a thermoplastic material. The thermoplastic material is selected to facilitate extrusion and provide a low cost, robust multi-layer tube for any low temperature glycol cooling system applications.

Abstract: The invention discloses a music arctic starry sky lamp comprising a shell assembly, an auroral assembly arranged in the shell assembly and a laser assembly arranged in the shell assembly; the auroral assembly comprises an auroral cover, an auroral piece, a condensing lens, a lens mount, a substrate and a motor arranged from top to bottom; a plurality of irregular plano-convex lenses are arranged on said auroral cover, the number of which is not less than ten, and not less than two thirds of the irregular plano-convex lenses are irregular long-strip-shaped lenses, and the length of the side edge of each irregular long-strip-shaped lens is more than two times of the width thereof; a plurality of plano-convex lenses are arranged on said auroral piece, different in size and irregular in shape, and the focal lengths thereof are different and the size are smaller than the diameter of the condensing lenses.