hollow billet钢坯: billet空心钢: hollow steel空心钢锭: hollow billet; hollow ingot空心钢辐轮: hollow steel oke wheel; hollow steel spoke wheel空心钢辊: hollow steel roller下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:空心钢坯，即可在微信中查询翻译
