I ask to specify the price for transparent quartz glass and not transparent quartz glass.Constant requirement of 1000-2000 kg. In a month.External diameter of 38 mm, a thickness of a wall of 2,3-2,5 mm, length of 826 mmEdges (ends) of pipes should be cut exactly off as on a photo, the file is enclosed.The chopped off edges (broken edges) of pipes it is impossible.Pipes for heaters, working temperature of 1000 degrees WithBest regards,AndreyCompany Name: Open Company "Phoenix" Street Address: Mendeleyev 17 City: Goose-crystal Province/State: Vladimir region Country/Region: Russian Federation Zip: 601503 Telephone: 7-4922-21822