... , SW2, and SW3, SW4 and SW5 belongs to BAR SUPPORT series Products Name :Bar supports Materials: Good Quality low carbon steel.Application ... , flexibility, anti-static, and environmental protection, this kind of steel bar support can greatly improve the quality of the project, save ... construction cycle.Varieties: We offer mainly nine series of steel bar supports:(1) SW1, SW2, and SW3, SW4 and SW5 ...