In the first half of this year, the total import and export value of Linyi City in Shandong Province was 25.81 billion yuan. Among them, the total value of exports was 17.41 billion yuan, an increase of 2.1% year-on-year. Export products are mainly made of traditional products such as plywood, tires and wicker products. The significant improvement in the foreign trade situation in Linyi City is mainly due to the superposition of multiple favorable policies such as the paperless reform of customs clearance, the integration of silk roads and the aggregation of taxes. In addition, the county economy has a good momentum of development. Lanshan District, Yishui County and Economic and Technological Development Zone ranked the top three in terms of import and export value. The foreign trade in Lingang Industrial Zone and Mengyin County grew rapidly, with imports and exports increasing by 114.1% and 113.6% respectively. 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
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.