China board trading network news: The Wall Street Journal reported that as the market expects that the U.S. government will impose heavy tariffs on timber imported from Canada in the short term, the price of wood hit a record high of 12 years on Monday. As the Trump administration in the United States has been calling for a reduction of trade deficits and the promotion of domestic employment, it has pushed up the domestic logging industry's demand for tariffs on Canadian imports of timber, leading to more intense trade disputes in more than a decade. U.S.-related units are expected to rule on the matter at the end of this month. Dealers said that Canadian logging mills have increased timber prices to cover the 35 to 55 percent tariff rate they believe the United States may impose. Such an assessment was made at the beginning of this year, when the economic impact of the move was estimated. Chicago Wood Monday’s futures price reached US$414.6 per 1,000 board feet, which is the highest level since March 2005. This year's timber price fluctuations are unusually large. Market fears will have an impact on the price of residential construction in spring. Matt Layman, publisher of the Layman Wood Guide, said: “The imposition of tariffs can be said to be the single largest incident affecting the logging industry. Wood dealers and builders do not want to pay this money, and in the end it will hurt the entire residential industry.†The Ministry of Commerce and the US International Trade Commission are investigating whether Canadian timber producers have received unfair subsidies from the Canadian government and whether they have dumped timber at a lower than fair price to the United States. US timber producers believe that Canadian timber imports account for about one-third of U.S. demand, not only hurting domestic U.S. companies but also stifling local job opportunities. Canadian Ambassador to the United States David MacNaughton pointed out that he hopes that the U.S. Department of Commerce’s report on tariffs is "fair and reasonable." As the agreement between the United States and Canada expired in 2015 and failed to be negotiated, tariff disputes have intensified. The US International Trade Commission made a ruling against Canada earlier this year. The U.S. Department of Commerce will announce preliminary rulings on April 24. Chicago Timber futures prices lasted for 2 days last week with rising days. The exchange raised its daily gain limit from US$10 to US$15. The above information, relevant Baoyuan plate supply information, plate purchase, etc. Please pay attention to the Chinese plate trading network
Sectional Door Accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
Detail introduction for above main accessories
1.Motor and controller:
The garage door operator is designed for residential overhead sectional and tilt doors.
The operator memorizes the limit positions and unique braking system that slows the unit down at the end of its travel.
Rolling code remote control with max. 20 pcs hand transmitters.
The operator is equipped with a manual release lever which allows manual operation of the door in case of power failure.
The controller has a security LOCK function which prevents operation of the door from transmitter.
2.spring break device:
Sectional doors are hinged and they bend in the tracks as the door opens and closes. Many of these doors are counterbalanced with extension springs, also designated "stretch springs," and they have seven characteristics. The length is the measurement of all the coils pressed together. This, along with the inside diameter of the coils and wire size - the thickness of the wire from which the springs are made - determine the stretch, the distance the spring is extended - normally half the door height, and pull, the force the spring pulls when stretched its normal length. The type of ends determine how the ends of the spring are mounted. The initial tension is the percentage of pull needed to separate the coils. This is determined by the pitch with which the springs are wound. On sectional garage door springs this is normally 15 percent. For example a 100 pound pull spring requires 15 pounds of weight to separate the coils; when a door is open the two springs will support 15 pounds of door weight without any stretch.
Most extension springs are made of oil tempered wire. These are normally coated or painted. Some springs are made of galvanized wire.
3.able break device:
cable break device ,door hardware
adjustable bottom bracket .
the raw material hot plate
zinc plated
safety device
adjustable bottom bracket
the raw material hot plate
zinc plating
spring safety device ,2" and 3" safety device
once the cable is broken ,this devoice can keep the hurt away from the door falling
4.aluminum alloy rope pulley
Equipment: CNC stamping/punching machine, CNC bending machine, CNC cutting
machine, 5~250 tons punching machines, welding machine, polish machines...
Processed material: stainless steel: copper, carbon steel
Surface treatment: Hot galvanized, polishing
Making process:Stamping, deep drawing,bending, punching, laser cutting,threading,
welding, tapping, riveting, grinding
5.air bag system
It is a safety device. When the door is down to hit something, it will up automatically.
Operation pressure:<3mbar
Battery:CR2032*2
Battery lifetime>1 year
Emission frequency: 315MHZ
Emission power:<10mW
Receiver power source:12V
6.duplex enhanced guide wheel bracket
Determining the right type of sectional door roller for your garage door tracks can be a little confusing, especially when you do not know what you need to look for in a garage door roller. To simplify things, there are two primary things you need to be aware of. First are the actual dimensions of the roller, and second is purpose that you will be using the door for. You can read below about measuring your roller and choosing the right quality of material for your door.
Other Door Accessories,Electronic Door Accessories,Automatic Door Accessories,High Speed Door Radar Detector Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.selfrepairinghighspeeddoor.com