27 Feb HengTong Order to Italy Flange inspection by 3rd party Feb 27, 2017 Company News HengTong Pipeline Co.,Ltd accept any the 3rd party inspection for any Pipe Fittings or Flange order.We can guarantee quality 2 times longer than other Manufacturers. Share this post Related News HengTong Order to Italy Flange inspection by 3rd partyASTM A182 Standard SpecificationHengTong Release new products: Union (FTH X SW and MTH X SW)ANSI B16.5 Class 150 flanges DimensionsHengTong release new Products Block BoardButt Weld Pipe Fittings ANSI B16.9 TolerancePipe Flange Standards-ANSI/ASME/BS/EN/JIS/GOST/DIN/GB FlangeApplications of Weld Neck FlangeTube China Fair 2016 & Orders of Welded Pipe FittingsHengTong Pipeline Introduced Automatic Surface Welding Robot