Our company, Poolad Peech Kar co. is a leading company in the field of manufacturing bolts & nuts specially for transmission lines & oil â?? gas & petrochemical refinery and mining industries it has been founded in 1998 and has always the effort to improve the quality. We manufacture different kinds of hexagon head bolts & hexagon nuts , stud bolt , U bolts , anchor bolts & special bolt & nut used in industries according to international standards such as ASTM , ASME , NSI , ISO , DIN , MBN , DBLâ?¦and it has based it&＃039;s quality management system according to the ISO 9001-2000 standard. We have customer in many country such as France, Egypt and Koreaâ?¦We are going expand our market and establishing new factory in Thailand. Specification of our products: Complete production-range: 12mm to 150mm Used steel-grades: different kind of steel-grades Standard: ISO 9001-2000 Quality assurance certificates: from DQS company in Germany Quality documentation of production final products: we have final testing & quality and product certificates Product head-marking: we mark P.K and grade