短語詞組短語lap -joint flange 自由回轉(zhuǎn)法蘭;供應(yīng)活套法蘭;翻譯lap p joint flange 活套法蘭Lap joint type flange 搭接式法蘭LJF Lap Joint Flange 松套法蘭lap joint type loose flange 管口翻邊活套法蘭 返回 lap joint flange