| 1. | Oval metallic ring gaskets for steel pipe flange joints
钢制管法兰连接用椭圆形金属环垫 |
| 2. | Buckle trade . metal rings for general use
环扣制造.一般用途的金属环 |
| 3. | Octagonal metallic ring gaskets for steel pipe flanges joints
钢制管法兰连接用八角形金属环垫 |
| 4. | Metallic ring joint gaskets for pipe flanges
管法兰用金属环垫 |
| 5. | Dimensions of metallic ring - joint gaskets for use with steel pipe flanges
钢制管法兰用金属环垫尺寸 |
| 6. | Specification for metallic ring gasket for steel pipe flanges joint
钢制管法兰连接用金属环垫技术条件 |
| 7. | Specification for metallic ring gaskets for steel pipe flange joints
钢制管法兰连接用金属环垫技术条件 |
| 8. | Buckle trade . metal tongued rectangular buckle for general use
环扣制造.一般用途的带舌片的矩形金属环扣 |
| 9. | Stamped metal rings for conductors
导线用冲压金属环 |
| 10. | A hinged fixture , such as a metal ring or bar , used for knocking on a door
门环供敲门用的有铰链的固定物，比如金属环或杆， |
