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Revenues (Tables) | 9 Months Ended
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Sep. 30, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue by Product Group | The following table presents the Company's revenues, disaggregated by product group. Substantially all of the Company's revenues are derived from contracts with customers where performance obligations are satisfied at a point-in-time.
|  |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(in thousands) |  |  |  |  | 2020 |  | 2019 |  | 2020 |  | 2019
Fiberglass and steel liquid storage tanks and separation equipment |  |  |  |  | 538 |  |  | 5,552 |  |  | 4,994 |  |  | 25,628 |
Heavy wall seamless carbon steel pipe and tube |  |  |  |  | 5,436 |  |  | 7,963 |  |  | 18,408 |  |  | 23,252 |
Stainless steel pipe and tube |  |  |  |  | 37,231 |  |  | 40,993 |  |  | 120,265 |  |  | 128,299 |
Galvanized pipe and tube |  |  |  |  | 3,875 |  |  | 5,613 |  |  | 16,094 |  |  | 18,549 |
Specialty chemicals |  |  |  |  | 12,186 |  |  | 13,519 |  |  | 40,338 |  |  | 41,494 |
Net sales |  |  |  |  | $ | 59,266 |  |  | $ | 73,640 |  |  | $ | 200,099 |  |  | $ | 237,222 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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