广泛用于金属管接头，钢筋接头等需要机械防护、防腐、密封等的工作环境。
Widely used in metal fittings, reinforced joints require mechanical protection Corrosion, sealing work environment.
广泛用于金属管接头，钢筋接头等需要机械防护、防腐、密封等的工作环境。
Widely used in metal fittings, reinforced joints require mechanical protection Corrosion, sealing work environment.
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