短語(yǔ)詞組短語(yǔ)bronze e welding rod 青銅焊條coated bronze gas welding rod 涂料青銅氣焊條phosphorous bronze welding electrode 磷青銅電焊條bronze welding rod 青銅焊條;焊青銅焊條Welding bronze 銅焊 返回 bronze welding