... stretch steel pipe, bent pipe, iron wire and steel wire are heated.2. Heat treatmentThe machine could quench, anneal or temper ... at home and aboard producing chain wheels, guide rails of machine tools, hammers, knives, scissors, pincers, axles, cams, chain wheels, ... and polyethylene-aluminum composite pipelines. We also apply the machine to aluminum foil sealing in the industries of food, beverage ...