机械机电行业专业英语第1866页iudustrial alcohol工业酒精iw 工业用供水管(industrial water supply pipe)iws international workman standa..
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PPR pipe is a new type construction material widely used in civilian and industrial water supply and sewerage system, but it is poor in hot and pressure resistance.
(无规共聚聚丙烯)管材是广泛应用于民用和工业给排水系统的一种新型建筑材料，但存在耐热、耐压性能方面的不足。
PPR pipe is a new type construction material widely used in civilian and industrial water supply and sewerage system, but it is poor in hot and pressure resistance.
PPR(无规共聚聚丙烯)管材是广泛应用于民用和工业给排水系统的一种新型建筑材料，但存在耐热、耐压性能方面的不足。
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