Cross section of steel pipe

We select some high lamp, is also because of his highly determines his entire lighting to the space is larger, and the high lamp base. If we choose a few more solid materials. For us, the cost is very low

we chose some light, but also because the height of his decision, his entire lighting to the space is larger, and the high lamp base. If we choose a few more solid materials. For us, the cost is very low, the switch is formulated in accordance with some law of time sequence to, and the street lamps use is very good for us. His base, for example, if a certain steel tube, and for the material of this kind of steel pipe we also must choose some of his material. Exists in the cross section of a circular steel tube with diameter ranging from phenomenon, namely there is not necessarily perpendicular, minimum and maximum overall diameter diameter is the largest diameter of which is the difference between the smallest diameter ovality ( Or out of roundness) 。 In order to control the ovality, some steel tube standard stipulated in the ovality indicators, without the permission of the general rules for no more than 80% of the diameter tolerance ( After the supply and demand both sides talks things over to perform) 。 Steel tube wall thickness is not the same, may in the cross section and longitudinal pipe body wall thickness range phenomenon exists objectively, the uneven wall thickness. In order to control the inhomogeneity, in some prescribed the uneven thickness of steel tube allows indicators, LED street light, general provisions do not exceed 80% of the wall thickness tolerance, After the supply and demand both sides talks things over to perform) 。 This kind of steel tube base is the most important safety issues for us, you select the appropriate high street lamp, manufacturer is also very important. Shandong burns lighting co. , LTD. , specializing in the production of solar energy and green lighting products. The whole lamp warranty for two years, the problems in the process of product use guarantee response within 24 hours, solution within 7 working days ( Domestic users) 。 Eliminate the trouble back at home of users has successively developed all kinds of road lighting, light, wisdom, street lamp, landscape lamp, solar road lights, solar garden lights, solar traffic lights, scenery complementary street light, solar lawn lamp, scenery complementary street light, high power LED street light, LED garden lights, solar module, solar battery, solar battery buried box and so on more than a dozen kinds of lighting products.