- Electric resistance welded (ERW) pipe is made from steel coil and the weld seam runs parallel to the pipe. The width of the coil is the same as the circumference of the pipe so diameters are limited to 24 inches. However, because the manufacturing process is fast, it is ideal for large production runs of small (<= 24 in.) diameter sections.
- Implementation standards：GB/T 8162, GB/T 8163, GB/T 9711, API SPEC 5L, ASTM A500, ASTM A53, ASTM A106, etc.
- Steel grade：Q235, Q355, 20#, 45#, A53 GR.B, A106 GR.B, L245 B, L290 X42, L360 X52, etc.
- Application areas：Main applications include oil, natural gas, gas, central heating, water supply, sewage treatment and other similar uses.
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