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看标志①先看商标,这是狄再英水管上的商标。②“PP-R80”是PP-R水管的材料等级,这种80的PP- R水管比普通的PP-R水管的材料等级要高,其密度和强度等物理指标也比普通的PP-R水管要高。
Look at the logo ① look at the trademark, this is the Di Di British pipe trademark. ② “PP-R80” is the material grade of PP-R water pipe. The PP-R water pipe of this kind of 80 is higher than the material grade of ordinary PP-R water pipe, and its physical indexes such as density and strength are also higher than ordinary PP -R pipe to be high.