Working pressure:-3000Pa to 5000Pa. Spiral Ducts,Metal Spiral Ducts,Spiral Air Ducts,Spiral Ductwork YANTAI DONGTAI STANDER OFFSHORE ENGINEERING CO.,LTD , https://www.dongtaicolumbus.com
On the same day, Wang Yong stated at the construction meeting of the export food and agricultural product quality and safety demonstration zone held in Weifang, Shandong, that over the years, local governments have been vigorously implementing the “company + base + standardization†production management model, striving to build a food and agricultural product quality safety supervision system, and helping enterprises improve The level of product quality and safety management, and actively responding to foreign technical barriers have achieved significant results.
According to reports, from 2004 to 2008, the qualified rate of China's export foods remained above 99%, which was 99.86%, 99.89%, 99.89%, 99.91%, and 99.96%, respectively.
Thanks to stable product quality, the export of food and agricultural products in China has continued to increase in recent years as foreign technology trade barriers have increased. Wang Yong said that from 2004 to 2008, the export of food and agricultural products increased year by year. In the first half of this year, under the international financial crisis, exports still achieved US$22.86 billion, a year-on-year increase of 5%.
Max diameter can reach to 2500mm,thickness 2.5mm.
The ventilation system consisted of spiral duct and pipelts performance meet EURO<DW144>standard.Sealability is over<DW143>class standard.
Choose good galvanized steelgood performance in antiseptic and antirust.Customer can also choose stainless steel sheetsaluminium sheets and Aluminum-Coated and Zinc-Coated Steel Sheets.
Pipe punch forming.standard and large-scale production,precise size,Attractive appearance,minimum windage and good sealability.
Slit bonding process make sure good sealability and will not destroy surface,Slip bond neat and meticulous
All pipe edges processed by revers are more safety.
"F"type EPDM seal rubber ring hemming fixed to make sure it does not slid and drop off when installatin.Rubber ring has good seatability and long life Using advanced and professional equipment to manufactuer pipe and spiral duct to make sure the product no scratch and knurling uniformity inside .And enhanced antiseptic and antirust abillity. Easy installation can save amounting cost.
Themal adiabatic system in spiral duct syseem is used for transfer cool and hot air.
Adiabatic system use GL or DNV or ABS certificated glass wool to be its insulating layer.lt s light weight,good insulation and long life cycle.
Inside and outside double socket enhanced installation stregth Precise dimensions and scientific design make sure tight connect between pipes,efficient system and good appearance.
In the first half of this year, the export of food and agricultural products in China increased by 5%
Wang Yong, director of the General Administration of Quality Supervision, Inspection and Quarantine, said on the 11th that in recent years, foreign technology trade barriers have been increasingly high, and China's food and agricultural products exports have achieved high growth under the “high thresholdâ€. In the first half of this year, despite the impact of the international financial crisis, China's food and agricultural products exports still increased by 5% year-on-year.