... API (American Petroleum Institute), ISO 9001:2000, MSHA Cover Hebei Rubber Hose R2AT / 2SNHose Tube: NBR oil resistant from Korea ... .3. Our equipment are imported from Germany ( Mayer braider ), rubber material are import South Korea LG , Strictly produced according SAE ... 350 Bar )4. Air / Water hose, Oil Hose, Water /Petroleum suction and discharge hoses, Slurry/mud /cement hose5. Plastic Spiral Guard ...