... 2, EN-10208-1/2, GB9711.1/2, ISO or client optionSteel Grade:B, X42 up to X70 ... made under ISO 9001-2000 strictly. (1) Quality:Q195 Q215 Q235 Gra. A Gra. B (2) Standards: ASTM A53 ... a.Our company produce various specification and models and national standards of galvanized steel pipe b.Using high- ... technical month capacity: 6000ton/month Certificate: API 5L, ISO,CE, BV, shipment: by bulk or by container ...