Workover Rig Components including sealed housing sealed core and trapezoidal thread feeding tool for wellhead operations MFH type seal assembly Own product line:Cementing Tools Series Product number:RIGE-MFH Consists of a sealed housing and a sealed core for sealing the center tube. Under the sealed casing with the hanger body, there is a left-handed trapezoidal thread connected to the feeding tool to feed the tailpipe. Details Consists of a sealed housing and a sealed core