Copper wire color (dark red or white) : continuous annealing in the work period of the line burn soft and pass cooling section after cooling can achieve lead not hot, without water.
铜线变色(暗红或发白):连续退火在工作段把线烧软,还要经过冷却段冷却后才能达到引出线不烫、不带水。
Copper wire color (dark red or white) : continuous annealing in the work period of the line burn soft and pass cooling section after cooling can achieve lead not hot, without water.
铜线变色(暗红或发白):连续退火在工作段把线烧软,还要经过冷却段冷却后才能达到引出线不烫、不带水。
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