tongue grooved joint企口接缝
tongue grooe joint槽沟平接榫
westbank tongue groove joint槽沟平接榫
tongue groove joint槽沟平接榫;榫槽连接
tongue e joint with lug带舌接合杆
west bank tongue groove joint槽沟平接榫
tongue and grove joint榫槽接合
tongue and grooved joint舌槽榫接
tongue and guoove joint企口式接头