Brand:ht
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* Material:Carbon steel,Stainless steel,Alloy steel,Duplex$super duplex stainless stee.
* Size:From ½” up to 106”
* Standards: ANSI, ISO, JIS, DIN, BS,GB, SH, HG,QOST,ETC.
* Certification: ISO9001:2000 , API , BV , SGS, LOIYD.



