Our company successfully developed SYZ-6X/750 small-sized six-shuttle circular loom (Patent NO.ZL99222128.5) and SYZ-4G/750 high-speed four-shuttle circular loom. They are mainly used for weaving plastic flat yarn fabric with flat width less than 750mm. They are special equipments for braided bag with a leading role in the world at present. These machines adopt advance monolithic chip monitor system, which can make reliable automatic tracing and alarm stop against wrap break, wrap finish, weft break, weft finish. They are also adopt frequency-conversion speed-governing which has advantages of high yield, low noise, less energy consumption and less maintenance cost as well as good quality on fabric surface which are ideal plastic weaving machineries at present.