... 0.8mm-12mm 3)Length: 3-12m 4)Standard: ASTM, BS, EN, JIS, DIN, API, AS 5)Certificate: ... you various steel pipes according to international standard. Black steel pipes are used in the ... since our good quality and service. 2. Production standard: ASTM A53, BS1387, EN10255, EN10240, EN10220, EN10219, ... ,BS1387-1985,GB/T3091-200, JIS, DIN, EN, AS1074, EN39, A500 etc.APPLICATIONIrrigation, construction, ...