... 38.84MM±1%Length 1-12M , according to customers' requirements Certificate API,SGS StandardBS1387/1985,ASTM A53/A36,API5CT,API 5L ... West Europe, South and southeast Asia,Australia,Africa, Place of OriginChina HS code:73063090 Productivity6000Ton/Month Processing technology available:galvanzied ... 2)Trade Terms : FOB / CFR /CIF 3)Minimum quantity of order:5 MT 4)Delivery period :approximately 30 Days .2 ...