您要查找的是不是：
- 高质量合金钢ERW锅炉管High Quality ERW Boiler Tube of Alloy Steel
- 排出高质量的版面.set to a high standard of typography
- T23高压锅炉管T23 high pressure boiler tube
- 产于美利奴的健壮的绵羊，出产高质量的肉食和羊毛。hardy sheep developed from the Merino producing both good mutton and fine wool.
- 锅炉管胀接工艺的探讨Discussion on boiler pipe expansion jointing procedure
- 保证质量guaranteed quality
- 高新区high and new technology industrial development zone
- 流管flow passage
- 要求高expect much
- 圆管circular tube
- 整备质量kerb weight
- 保险管protective tube
- 比高relative height
- 针管needle tube
- 你的工作质量有所下降。There has been a slip in the quality of your work.
- 支管manifold branch
- 高锰合金钢, 高锰钢high manganese steel
- 直管ascending pipe
- 高碳低合金钢丝wire of hi-carbon and low alloy
- 源管source capsule
