RIYANG Automatic Butt Fusion Welding Machine V630 CNC worked in HONGKONGOct 20,2020 After strict testing at client`s site, 2units RIYANG V630CNC butt fusion machine will be put into use soon. Cheers! Previous RIYANG Basic Butt Fusion Machine V1000 worked in PeruNext Butt Fusion Welding Machine RIYANG V630 worked in Argentina