1.Non-destructive: RT UT 2.high quality and competitive price 3.heat treatment 4.dimension:agreement elliptical head1.high quality and reasonable price.2.forming methods: pressing, spinning.3.our company can provide drawings in accordance with processing.4.all products process are made under the ISO9001:2008 strictly.5.we can produce all kinds of heads.which dimension ranges from 25mm to 12000mm. ...