$9.$ Seam welding produces a continuous $\_$ instead of individual weld spots by using $\_$ electrodes that roll along the weld line, commonly used in the manufacturing of $\_$ and $\_$ containers. $($Options: weld, seam, circular, wheel, metal, plastic$)$

$10.$ Resistance butt welding involves the joining of materials end$-$to$-$end through the application of $\_$ and $\_,$ a process suitable for $\_$ rods or wires in industries like $\_.($Options: heat, pressure, electrical current, metal, ceramic, construction, manufacturing$)$