Steel-Plastic Pipe1,Website:http://www.sinosteelpipes.com,Specification:       1.Standard:GB/T 3639-2000,API 5L2.Grade:ST35-ST523.Outer Diameter:1/2"-8"4.Length:3-12m5.Certification:API 5L6.Further Processing:Cutted/Welded7.Zinc Coating:60um-80um8.Delivery Time:15-20 daysSize ListLength      (mm)Thickness      (mm)Sectional Area      (cm2)Weight      (kg/M)Inertia Moment      (cm4)Section Modulus      (cm3)403.54.93.8511.165.5845.494.5614.376.8456.985.4816.567.8767.555.9315.347.675047.095.5625.5610.2258.586.7329.8111.9369.957.8133.3513.34711.218.836.2314.49812.359.738.5115.4160510.588.354.5718.19613.359.6961.8220.61714.011168.0322.68815.5512.2173.2824.4370512.589.8790.2625.79614.711.58103.129.47716.8113.19114.532.72818.7514.72124.535.5780514.5811.44138.934.72617.1513.46159.739.93719.6115.39178.544.63821.9517.23195.448.8592516.9813.33217.147.19620.0315.72251.154.59722.9718.03282.361.38825.7920.25310.967.58100518.5814.58282.856.57621.9517.23328.265.54725.2119.79370.274.04828.3522.36408.981.78108519.9615.67346.9972.14623.5518.49400.0785.13727.0221.21448.1597.61830.3523.82491.42109.561036.6228.75564.27131.841242.3733.26620.05151.9112.543.7334.33631.48156.571447.5937.36660.12169.7116.553.3841.9690.13188.751856.4644.32698.5198.48110728.0121.99503.491.54831.5524.77557.9101.4934.9827.46608.4110.61037.4229.37600.9137.261243.3334.01661.57158.31448.7138.24705.79177.051653.5742.05734.96193.471857.945.45750.37207.58120522.3617.55485.4789.79626.4320.75562.16106.17730.3823.85632.54121.99834.1926.84696.82137.231041.4232.15807.91165.941248.1337.78987.05192.031454.3142.639665.79216.231659.9747.081015.66237.3150633.6326.41145.91168.85738.7830.441299.44194.7843.7934.381443219.851053.4241.931701.21268.021262.5349.091922.61313.261471.1155.822109.19355.491679.1762.152262.95394.631801698.3777.224252.42590.5518108.385.024541.3648.77200859.7946.943621400.251073.4258.634337.63491.531286.5367.934983.59579.081499.1177.85562.26662.7816111.1787.276076.38742.5518122.796.326528.64818.292501093.4273.338841.87781.7312110.5386.7710254.22924.9414127.1199.7811556.241063.5116143.17112.3912751.411197.3118158.7124.5813843.171326.2728010105.4282.7512648.95987.8612124.9398.0714726.821170.8814143.91112.9716663.461348.7716162.37127.4618462.791521.4218180.3141.5420128.711688.732,Characteristic & Application: It is widely used in mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail, container frame, furniture, decoration, steel structure etc. 3,Product show:Finished product4. Adavantage:As one of the biggest manufactures of China, we exported large quantity to American, Europe, Asia and Africa countries, due to high quality and reasonable price. Our price is very competitive because we are manufacturer, we are the source.