 |
| |||
| packing with flange of piping and valve for steam line, exhaust line and drain line | |||
| 蒸汽管路、排气管路和泄水管路的管子和阀门的法兰填料: 1 phrase in 1 subject |
| Technology | 1 |
|
| |||
| packing with flange of piping and valve for steam line, exhaust line and drain line | |||
| 蒸汽管路、排气管路和泄水管路的管子和阀门的法兰填料: 1 phrase in 1 subject |
| Technology | 1 |