The present invention relates to the method of eliminating internal rust stains and scales of and coating wall protecting paint to water pipe, gas pipe and oil pipe.
高压气、水管道除垢及护壁方法，涉及对供水管、给水管、煤气管、输油管清除管内的锈斑和结垢和涂覆护壁涂料的方法。
The present invention relates to the method of eliminating internal rust stains and scales of and coating wall protecting paint to water pipe, gas pipe and oil pipe.
高压气、水管道除垢及护壁方法，涉及对供水管、给水管、煤气管、输油管清除管内的锈斑和结垢和涂覆护壁涂料的方法。
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