Rain environment: as far as possible in the rain, snow, before the advent of stop welding, welding area in order to avoid the rain fall, causing the weld and heat affected zone of the cooling speed, metal hardening tendency increases. To prevent moisture absorption welding materials, welding consuma

Snow environment: should, as far as possible, before the advent in rain, snow, so as to avoid rain stop welding landed at welding region, causing weld and heat affected zone, the cooling speed metal of cirrhosis increased tendency. For the purpose of guarding against and welding materials absorb moi

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Rain and snow environment: where possible, rain, snow, before the onset of stop welding to avoid rain landed in the weld area, resulting in faster cooling of weld and Haz, hardening of metals tend to increase. For welding material absorb moisture-proof, should return the welding material welding mat

Rain and snow environment: where possible, rain, snow, before the onset of stop welding to avoid rain landed in the weld area, resulting in faster cooling of weld and Haz, hardening of metals tend to increase. For welding material absorb moisture-proof, should return the welding material welding mat