Petroleum and natural gas industries - Steel pipes for transportation GB/T9711-2011-Yantai Donghai Steel Pipe Co., Ltd.
23/10/26 09:25:10
Steel grades: L210, L245, L290, L320, L360
Specification: 76-530 * 4-30mm
Product standards: GB/T9711,1, GB/T9711,2, (ISO 3183-1.2; API Spec SL)
Purpose: Suitable for steel pipes used in the petroleum and natural gas industries for transporting gas, water, and oil