... AP,GMP,SGS certificate We produce two-layer tubes and multi-layer composite tubes, 13-60mm in diameter, 50-310mm in ... stampingCaps Screw caps, flip-top caps, mushroom cap, tip cap, pump cap, tip bugle, acrylic cap, UV coating cap, lipstick capPackingStandard ... quality and first class service·The largest production base of plastic tube in north China·One hundred thousand level decontamination workshop ...