短語詞組短語ECON OUTLET PIPE TEE BEND 省固三通small -radius pipe-bend 小半徑彎管galvanized d pipe bend 鍍鋅管彎頭gas -pipe bend 氣管彎頭reduced pipe bend 異徑管彎頭fabricated pipe bend 預(yù)制彎管galvanized pipe bend 鍍鋅管彎頭factory pipe bend 預(yù)制彎頭expansion pipe bend 伸縮管彎頭 返回 pipe bend