En资源列表

[国外标准] BS EN 12982-2000 Industrial valves End-to-end and centre-to-end dimensions for butt welding end valv

[国外标准] BS EN 12976-1-2006 Thermal solar systems and components - Factory made systems. General requirements

[国外标准] BS EN 12975-2-2006 Thermal solar systems and components — Solar collectors — Part 2 Test methods

[国外标准] BS EN 12975-1-2000 Thermal solar systems and components-Solar collector Part 1 General requirements

[国外标准] BS EN 12973-2000 价值管理

[国外标准] BS EN 12970-2000 Mastic asphalt for waterproofing

[国外标准] BS EN 12965-2003 Tractors and machinery for agriculture and forestry — Power take-off (PTO) drive sh

[国外标准] BS EN 12957-2009 Machine tools — Safety — Electro discharge machines

[国外标准] BS EN 12954-2001 Cathodic protection of buried or immersed metallic structures

[国外标准] BS EN 12953-9-2007 Shell boilers — Part 9 Requirements for limiting devices of the boiler and access

[国外标准] BS EN 12953-8-2001 Shell boilers-Part 8 Requirements for safeguards against excessive pressure

[国外标准] BS EN 12953-7-2002 Shell boilers — Part 7 Requirements for firing systems for liquid and gaseous fue

[国外标准] BS EN 12953-6-2002 Shell boilers — Part 6 Requirements for equipment for the boiler

[国外标准] BS EN 12953-5-2002 Shell boilers — Part 5 Inspection during construction, documentation and marking

[国外标准] BS EN 12953-4-2002 Shell boilers-Part 4 Workmanship and construction of pressure parts of the boiler

[国外标准] BS EN 12953-3-2002 Shell boilers — Part 3 design and calculation for pressure parts

[国外标准] BS EN 12953-2-2002 Shell boilers-Part 2 Materials for pressure parts of boilers and accessories

[国外标准] BS EN 12953-11-2003 Shell boilers. Acceptance tests

[国外标准] BS EN 12953-10-2003 Shell boilers — Part 10 Requirements for feedwater and boiler water quality

[国外标准] BS EN 12953-1-2002 Shell boilers-Part 1 General

[国外标准] BS EN 12952-16-2002 Water-tube boilers and auxiliary installations — Part 16 Requirements for grate

[国外标准] BS EN 12942-1999 Respiratory protective devices. Power assisted filtering devices incorporating full

[国外标准] BS EN 12933-2000 Chemicals used for treatment of water intended for human consumption - Chemicals fo

[国外标准] BS EN 12915-2-2009 Products used for the treatment of water intended for human consumption — Granula

[国外标准] BS EN 12915-1999 Products used for treatment of water intended for human consumption. Granular activ