材质
A53(A,B), API J55, API K55, API L80, API N80, API P110, 删, Q215, Q235, Q345
Material
Austenitic Stainless Steel 304
wall thickness
sch40(0.296")
Connection
male threads from both ends and female coupling
Surface treatment
polish,pickling,passivation
Protection
thread ends with protector
Reference
API, ASTM, DIN or equivalent
Inspection
BV, SGS or buyer representatives
Usage
water/oil well drilling projects
Certificate
ISO,COC, CO, SASO, CIQ, FORM A/E