HG/T2129.21-1991耐酸酚醛塑料制化工设备零部件直角等径三通HG/T2129.21-1991

HG/T2129.20-1991耐酸酚醛塑料制化工设备零部件凸缘式直角异径三通HG/T2129.20-1991

HG/T2129.19-1991耐酸酚醛塑料制化工设备零部件凸缘式直角等径三通HG/T2129.19-1991

HG/T2129.18-1991耐酸酚醛塑料制化工设备零部件90°圆弧弯头HG/T2129.18-1991

HG/T2129.17-1991耐酸酚醛塑料制化工设备零部件下周缘式45°弯头HG/T2129.17-1991

HG/T2129.16-1991耐酸酚醛塑料制化工设备零部件凸缘式直角弯头HG/T2129.16-1991

HG/T2129.15-1991耐酸酚醛塑料制化工设备零部件凸缘式90°虾米弯头HG/T2129.15-1991

HG/T2129.14-1991耐酸酚醛塑料制化工设备零部件凸缘式90°圆弧弯头HG/T2129.14-1991

HG/T2129.13-1991耐酸酚醛塑料制化工设备零部件直管HG/T2129.13-1991

HG/T2129.12-1991耐酸酚醛塑料制化工设备零部件凸缘式直管HG/T2129.12-1991