![]() Steel cord conveyor belts - Cord-to-coating bond test - Initial test and after thermal treatment 钢丝绳芯输送带 绳与包覆胶粘合试验 原始状态下和热老化后试验 |
![]() Water treatment chemicals - Polyamino Polyether Methylene Phosphonate (PAPEMP) 水处理剂 多氨基多醚基亚甲基膦酸(PAPEMP) |
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