China manufacturer of 4m Trampoline with safety net at competitive price. 4m Trampoline with Safety Net Features:1) Size: 183cm,244cm,304cm,366cm,396cm,426cm, ... tube made by galvanized steel (double galvanized for inside and outside);3) The frame is sturdy, and it will withstand ... GS, EN-71, EN913, ASTM, AS4989 certificates. Specification: Size:6ft/8ft/10ft/12ft/13ft/14ft/15ft/16ftDiameter(cm):183/244 ...