36 inch carbon steel black spiral pipe used:carbon steel pipe should be applied structure, electric power transmission tower projects, piling, water, oil & gas pipeline engineering, mechanical industry, municipal projects, roads and its auxiliary facilities, etc.large diameter 36 inch carbon steel pipe product 36 inch carbon steel black spiral pipe specification section shape: round galvanizedsteel pipe thickness: 4mm-16mmwelded steel pipe outer diameter: 219mm-2020mm standard astm a252, bs1387, gb3091, astma53, b36.10, bs en1029, api 5l, gbt9711 etc material q195, q235, q345; astm a53 gra, grb; stkm11, st37, st52, 16mn, etc. Fabrication plain ends pipe, cutting threading, beveled, 3pe steel pipe, black and color painting, anti-rusting oilsteel pipe, varnish paintingsteel pipe, zinc-coating steel pipe, steel stamp, drilling, diameter reducing pipe etc. Surface treatment 1. 3pe 2. Pvc, black and color painting 3. Transparent oil, anti-rust oil 4. According to clients requirement package 1. Bundle galvanizedsteel pipe 2. Bulksteel pipe 3. Plastic bags , etc min order 1 tons, more quantity price will be lower payment terms tt, lc at sight, western union etc. Deliver time within 7-15 days after deposit, asap application construction, machine structure pipe, agriculture equipment pipe, water and gas pipe, greenhouse pipe, scaffolding pipe, building material tube, furniture tube, low pressure fluid tube, oil pipe, etc.