尊龙凯时·(中国区)人生就是搏!

尊龙凯时(中国)人生就是搏! 尊龙凯时(中国)人生就是搏! 尊龙凯时(中国)人生就是搏!
尊龙凯时(中国)人生就是搏!

surfacing with band-electrode

Current 1500A, Welding diameter of tube plate 4M, Welding diameter of cylinder 6M

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