The latest implementation of the standard seamless steel pipe and weight formula

The latest implementation of the standard seamless steel pipe and weight formula The implementation of seamless steel pipe 1, structural seamless steel pipe: GB8162-2008
2. Sewage pipe for conveying fluids: GB8163-20083
3, low and medium pressure boiler tube boiler seamless steel tube: GB3087-2008
4. Boiler high pressure seamless pipe: GB5310-2008 (ST45.8-III type)
5, high-pressure seamless steel pipe for chemical fertilizer equipment: GB6479-1999
6. Geological drilling seamless steel pipe: YB235-70
7. Petroleum drilling seamless steel pipe: YB528-65
8, seamless steel pipe for oil cracking: GB9948-88
9, oil drill collar special seamless tube: YB691-70
10. Seamless steel tubes for automobile half shaft: GB3088-1999
11. Seamless steel tubes for ships: GB5312-1999
12, cold-drawn cold-rolled precision seamless steel pipe: GB3639-1999
13、All kinds of alloy pipes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo
In addition, GB/T17396-1998 (hot-rolled seamless steel pipe for hydraulic pillars), GB3093-1986 (high pressure seamless steel pipe for diesel engine), GB/T3639-1983 (cold-drawing or cold-rolled precision seamless steel pipe), GB / T3094-1986 (cold-drawn seamless steel pipe shaped steel pipe), GB/T8713-1988 (hydraulic and pneumatic cylinder with precision inner diameter seamless steel pipe), GB13296-1991 (boiler, heat exchanger stainless steel seamless steel pipe), GB/T14975 -1994 (stainless steel seamless pipe for structural use), GB/T14976-1994 (stainless steel seamless pipe for fluid conveying) GB/T5035-1993 (seamless steel pipe for automotive semi-axle casing), API SPEC5CT-1999 (sleeve and tubing) Specification) etc.
Seamless steel pipe weight calculation formula [(outer diameter - wall thickness) * wall thickness] *0.02466 = kg/meter (weight per meter)

Up And Dwon Linear Lights

When you look up, do you feel that your ceiling is too dark and feel depressed? Do you think the sky above the corridor is a little scary?

Then these Up and Down linear lights can solve your problem very well. Both the top and bottom of this Linear Light Led can emit light, the top is 30%, and the bottom is 70%. This Up And Down Light will make the entire space more spacious.

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There are multiple power options: 20w, 30w, 40w, 60w, 80w, 100w. (up 30%, down 70%). The luminous efficiency can be as high as 180lm/w, which saves energy and saves electricity expenses. This led lighting has two lighting angles that can be selected from 120° and 180°. (The bottom light can be selected, and the upper light is 120°).

Like the other three Office Lighting, it can add emergency functions, dimming function and sensing functions. It can also be connected seamlessly. There are a variety of lengths to choose from: 2ft, 3ft, 4ft, 5ft, 6ft, 8ft. Generally, for the convenience of transportation, choosing a shorter size to splice is also a good choice.
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Whether it is a corridor, a museum, a restaurant, or a kitchen, you can use this Up And Dwon Linear Lights to light up.

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SHENZHEN LITEHOME OPTOELECTRONIC TECHNOLOGY CO., LTD. , https://www.litehomelights.com