When building the channel iron hinge, cut a hole in the channel and weld the pipe sleeve to the bottom of the channel

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When building the channel iron hinge, cut a hole in the channel and weld the pipe sleeve to the bottom of the channel

When building the channel iron hinge, cut a hole in the channel and weld the pipe sleeve to the bottom of the channel

When building the channel iron hinge, cut a hole in the channel and weld the pipe sleeve to the bottom of the channel. The gate must not pivot against the welding bead.