wholesale concrete pump spare parts 4inch 5inch hardened ...
Big Bolt Coupling, forged concrete pump pipe coupling - PK wholesale concrete pump spare parts 4inch 5inch hardened steel. Concrete pump spare parts galvanized forged concrete pump pipe coupling pipe clamp * Size DN50-DN200 * Material 40Cr * Technology casting and forged * Working pressure 130bar * Surface treatment galvanized or baking paint * Advantage …
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