weldless การใช้

• By May 1913, the company was producing brass and bronze rods as well as rings and weldless tool steel.
• Returning to the main line, the Weldless Steel Tube Works were located on the north bank, and a gas furnace plant was to the south.
• The design and construction of the bridge was also found to have been poor, especially in that the specifications called for weldless iron to be used, but the ironwork was almost all welded.
• The No 20 had two variants, the Mk I and II . The Mk I had a solid steel cylinder body, very similar to the No 3, while the Mk II used a weldless steel tube and had circumferential grooves for fragmentation.