Concrete screws are a really fast and easy way to fix to masonry. Once the correct drill bit has been selected you can use these fasteners really quickly as there is no messing about- just drill the correct size hole and then screw the concrete screw into the hole!
https://www.maneklal.com/English/Welding/ButtWeldingMc.htm
Upset Butt Welding Machine for Band Saw Blades / Soldadoras a Tope con Recalcado para Soldar Sierras Sin Fin
Maneklal Global Exports
67 Bajaj Bhavan, Nariman Point, Mumbai 400021, India
Tel: (+91 22) 22041340 / 41 / 42
Fax: (+91 22) 22041389
e-mail: sales@maneklalexports.com
web site: https://www.maneklal.com