Butt welding flange is a kind of pipe fittings. Butt welding flange, also known as split flange, refers to the flange with neck and round pipe transition and butt welding connection with the pipe.
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Wenling Zuhui Import And Export Co.,Ltd: We're professional helical gear, powder metallurgy, sintered gear, sintered bushing, sintered parts manufacturers and suppliers in China. Please feel free to
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There are several types of laser markings. The common one included engravings, etching annealing, discoloration, and carbon migration — other methods including melting, foaming, and ablation.
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