B11-5400420-DY REINFORCEMENT - A PILLAR RH UPR B11-5400240-DY REINFORCEMENT - A PILLAR RH B11-5400340-DY BODY ASSY - TOP BEAM RH B11-5100320-DY REINFORCEMENT BEAM- -DOORSILL RH B11-5400410-DY REINFORCEMENT - A PILLAR UPER LH B11-5400230-DY REINFORCEMENT - A PILLAR LH B11-5400330-DY BODY ASSY - TOP BEAM LH B11-5100310-DY MEMBER - REINFORCE (LH DOORSILL ) B11-5400480-DY REINFORCEMENT - B PILLAR RH B11-5400260-DY REINFORCEMENT - B PILLAR RH B11-5400160-DY BODY ASSY - INNER PLATE ( B PILLAR RH) B11-5400150-DY PANEL-B PILLAR LH INR B11-5400250-DY REINFORCEMENT PANEL-B PILLAR LH B11-5400470-DY BODY ASSY - MOUNTING PANEL (B PILLAR LH)   Body in white refers to the body before welding but not painting, excluding moving parts such as door and hood. Body in white, also known as body body, refers to the assembly of body structural parts and covering parts, including roof cover, fender, engine cover, trunk cover and door, but excluding the unpainted body of accessories and decorative parts. BIW plus interior and exterior decoration (including instrument panel, steering column, seat, front and rear windshield, rear-view mirror, fender, water tank, headlamp, carpet, interior trim panel, etc.), door, hood, trunk lid and electronic and electrical system constitute the real body. In the industry, it is called trimmed body, which means the installed body, On this basis, the whole vehicle is composed of chassis (including engine, gearbox, transmission system, braking system, suspension system, exhaust system, etc.). The BIW consists of the following parts: 1. Cover panel: the surface plate covering the skeleton, which refers to the components covering beams, pillars, etc. in the body, the surface and interior plate with large space area shape. Its main function is to close the car body, reflect the appearance of the car body and increase the structural strength and stiffness. 2. Structural member / body structure: generally refers to beams, pillars, etc., which are all body structural parts supporting panels. It is the basis of vehicle body bearing capacity and is very important to ensure the structural strength and stiffness required by the vehicle body. 3. Structural reinforcement: it is mainly used to strengthen the stiffness of plates and improve the connection strength of various components