Steel pipe knowledge: GB3639 precision seamless steel pipe

This standard specifies the classification and code, size, shape, weight and allowable deviation of cold drawn or cold rolled precision seamless steel tubes, technical requirements, test methods, inspection rules, packaging, markings and quality certificates.
This standard applies to the production of mechanical structures, hydraulic equipment, automotive with a special size and high surface quality requirements of the quality requirements of cold-drawn or cold-rolled precision seamless steel tubes.
GB/T9711.1-1997 Petroleum and natural gas industrial transfer steel pipe delivery technical conditions Part 1: Grade A steel pipe GB/T9711.2-1999 Petroleum and natural gas industrial transfer steel pipe Technical delivery conditions Part 2: Grade B steel pipe GB/T3090- 2000 Stainless steel seamless pipe of small diameter GB/T18984-2003 Seamless steel pipe of low temperature pipe GB5310-1995 Seamless steel pipe of high pressure boiler GB/T8162-1999 Seamless steel pipe of structure GB/T14975-2002 Stainless steel seamless pipe of structure GB/ T14976-2002 Stainless Steel Seamless Pipe for Fluid Conveyance GB/T5777-1996 Ultrasonic Inspection Method for Seamless Pipe GB/T8163-1999 Seamless Steel Pipe for Transfer Fluid GB6479-2000 (neq ISO 9329-2:1997) No for High-pressure Fertilizer Equipment Steel pipe GB3087-1999 (neq ISO 9329-1:1989) Seamless steel tubes for low and medium pressure boilers GB/T Size, shape, weight and allowable deviation of seamless steel tubes GB/T7735-2004 Inspection method for eddy current flaw detection of steel tubes GB /T9711.3-2005 Petroleum and natural gas industry steel pipe delivery technical conditions Part 3: Class C steel pipe GB/T20409-2006 High-pressure boiler seamless steel pipe with internal thread GB9948-2006 Seamless steel pipe for oil cracking GB50398-2006 Seamless steel pipe Process design specification GB13296 -2007 Boiler and heat exchanger stainless steel seamless steel pipe JGJ95-2003 Technical specification for cold-rolled ribbed reinforced concrete structure GB/T4171-2000 High weather-resistant structural steel GB/T5213-2001 Cold-rolled steel sheet and strip for deep drawing GB/T6725 -2002 Cold formed steel GB13788-2000 Cold rolled ribbed steel bar GB3280-92 Stainless steel cold rolled steel plate JG190-2006 Cold rolled and twisted steel bar (instead of JG3046-1998)
GB/T1499.3-2002 Reinforced concrete welded steel mesh GB708-2006 Cold rolled steel plate and strip size, shape, weight and allowable deviation GB716-91 Carbon structural steel cold rolled steel strip GB912-89 GB11235 (discarded) Carbon Structural Steels and Low-Alloy Structural Steels Hot-Rolled, Cold-Rolled Steel Sheets and Strips GB/T6728-2002 Structural Cold-Bending Hollow-Shaped Steels Dimensions, Shapes, Weights and Permissible Deviations Project Construction Sub-item Design and Construction Series Atlas Steel Structure Engineering (Up/Down book)
Low-rise light steel frame house design - engineering calculation low-rise light steel frame house design, manufacture and assembly of reinforced concrete structure design table (written according to the new specification)
GB 4239-1991 Stainless steel and heat-resisting steel cold-rolled steel strip GB/T17102-1997 Stainless steel cold-rolled thin steel sheet and steel strip GB/T8164-1993 (Waste) Steel strip for welded steel pipe GB 8749-1988 High quality carbon structure Hot-rolled steel strip GB/T8544-1997 Aluminum and aluminum alloy cold-rolled strip JGJ115-2006 Technical specification of cold-rolled and twisted reinforced concrete components

Door Accessories

Door accessories include Automatic Door Kits , High Speed Door Motor And Control Box, High Speed Door Accessories, Other Door Accessories. We can sell any parts of these accessories.

Automatic door kits: Our automatic door kits include 1 motor+gear reducer, 1 belt,7 meter, 1 idle pulley, Microprocessor, 4 sets of carriage blue wheels, 2 sets of floor guides,2pcs remote control, 2 sets belt clamp mounting brackets, 1 power supply harness and cable connectors, 2 locator, Aluminum track whose length is 2.08 meter, 3 meter, or 4 meter. We are a manufacturer of automatic door openers that are designed to provide people convenience. Automatic Door Systems` drive to provide that level of service is but one of the reasons why automatic doors are becoming more and more popular. Our Automatic Sliding Door systems are modern, space-saving and elegant. Automatic sliding doors have many basic functions some of which include: automatic mode with full opening width and/or reduced opening width, and exit only for traffic control. The opening of automatic doors can also be adjustable to make the opening width smaller or larger. Important safety functions such as safety sensors prevent the door from shutting if persons or objects are in the detection zone. If the door leaves are inhibited when closing, they are immediately re-opened or if the door leaves are hindered when opening, they are immediately stopped by a safety automatic reversing mechanism.

High Speed Door motor and control box: Our company have German SEW Motor, Japan Mitsubishi Controller. Our own brand Hofic servo motor and controller. Chinese famous brand SEJ motor and Holip controller. German SEW Motor and Japan Mitsubishi Controller: It is easy to find the ideal energy-efficient motor for your application at SEW. Our rolling gate servo control system is suitable for high speed and high usage soft and hard rolling gate. The whole system is in a small and light package, it has high torque and high operating speed, lower noise, high reliability, smooth and soft operating curves, it`s suitable for high speed and usage environment. SEJ motor and Holip controller: Three-phase asynchronous motor with magnetic brake has broad uses, It is suitable for various mechanical main drive and auxiliary drive, and it is also used for various required rapid stopping and correct positioning.

high speed door accessories: Driving system: High speed door Servo System motor and control, motor SNMA / SEJ +reducer+flang+encoder+control box. Other accessories: Middle aluminium bar, bottom aluminium bar, aluminium vertical track, stainless steel vertical track, brushes,round nylon strip, PVC roll, rolling steel tube complete, drum be;;s for rolling tube, side end covers, stainless steel cover, steel tubes, air bag sensor system, safety light beam, Microwave sensor 24 Gigahertz,PVC welding machine, smoke and fire sensors, PVC transparent window, magnetic loop, photocell, remote control, manual push button, sound warning alarm Led lamp traffic light.

Other door accessories: 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.

For accessories detail information, please kindly check our detail classify.

Door Accessories,Automatic Door Kits,High Speed Door Accessories,Sliding Door Operator

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfhighspeeddoor.com