Insulated Coffee Mug 350ml Heat Resistant Double Wall Glass Cup From Shinelong

Insulated Coffee Mug 350ml Heat Resistant Double Wall Glass Cup From Shinelong. High Borosilicate Glass: Made from high borosilicate glass with a linear thermal expansion coefficient of 3.3 for superior durability. Food Grade Safety Certified: Certified by FDA, LFGB, ROHS, REACH, and SGS, meeting strict Japanese food grade standards. Custom OEM Services: Supports custom designs, sizes, and packaging to meet unique customer requirements. Trusted Manufacturer: Over 15 years of experience with ISO9001 and BSCI certifications and solid partnerships with global brands. High Production Capacity: Daily output of 10,000 pieces and annual capacity of 3,000,000 pieces ensuring timely delivery.