malleable cast iron pipe fittings--type size--u-elbows(return bends)malleable cast iron pipe fittings-type size-u-elbows型: mould; model弯头: angle head; elbow; elbow pip ...微型弯头: microbend型弯管: u-bend弯头: angle head; [机械工程] elbow; elbow pipe; ell; knee bend; bend 回转弯头 return bend; 接合弯头 joint elbow下载手机词典可随时随地查词查翻译
