久久66热re国产**片基地_亚洲精品日韩专区在线观看_亚洲国产日韩欧美永久在线观看_欧美第一页草草影院_男女丁香五月激情_亚洲高清澡超碰碰中文字幕_麻豆av中文无码在线导航_在线观看高清视频bbixx_久久韩国精品无码一区二区毛片_99精品国产兔费观看66

Contact us

  • Address:No. 206 Honghui Road, Yuhong District, Shenyang City, Liaoning Province, China
  • Telephone:+86-24-25354582
  • Email:tdmy118@163.com
  • Square duct

    Class:Accessories

    Specs:

    Price:

    Telephone:024-25354582


Product description
Product Image
Product introduction
Ventilation ducts are metal or composite ducts for ventilation and air conditioning engineering for industrial and civil buildings. They are a municipal infrastructure for air circulation and reducing the concentration of harmful gases.
The plates, profiles and other main finished materials used in the manufacture and installation of air ducts in ventilation ducts shall comply with the current national standards for design and related products, and shall be subject to the factory inspection certificate. Materials shall be accepted and accepted according to the relevant national standards. .
Use classification
Generally: the purification system sends back the air duct, the central air-conditioning ventilation tube, the industrial air supply and exhaust ventilation pipe, the environmental protection system suction and exhaust air pipe, the mine drainage gas pipe, the mining rubber cloth wind pipe, etc.;
Shape classification
Generally: round, rectangular, spiral, etc.;
Processing technology
Can be divided into angle iron flange duct, common plate flange duct.

Purchase:Square duct

*Indicate mandatory

Copyright @ 2019 Liaoning Hefan Environmental Engineering Co., Ltd. All Rights Reserved

Contact us

Contact:Manager Liu

Phone:15840543048

Phone:024-25354582