About SAMPO Certificate Product Infomation SITEMAP | CONTACT US Product Infomation ASTM B88 ASTM B280 ASTM B306 ASTM B819 ASTM B837 Multi-Tube Linesets Paircoil Product Infomation > Paircoil COPYRIGHT BY 2006 SAMPO INDUSTRIAL. ALL RIGHT RESERVED / CONTACT sukhee1974@sampotube.com FOR MORE INFOMATION