为了焊接方便，管件与被连接的管子的钢种是相同的。
In order to convenient welding, pipe and the connecting pipe steel is the same.
本实用新型公开了一种S形的连接管，涉及建材产品技术领域。该连接管为S形的管子的形状。
The utility model discloses an S-shaped connection tube, relating to construction material production technical field.
本实用新型公开了一种S形的连接管，涉及建材产品技术领域。该连接管为S形的管子的形状。
The utility model discloses an S-shaped connection tube, relating to construction material production technical field.
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