18/8 stainless steel, food grade standard BPA free fashion and portable design we ... and SGS Certificate We are the manufacturer of stainless steel sport bottle, travel mug, coffee mug, stainless steel soap and so on, Our products has ... follows: 1,all the mugs are made of 18/8 stainless steel ,food grade standard,BPA free. 2, we have got ISO9001 ...