Please contact us immediately once you have found the imperfections of colour fastness to ozone . If you have received our second-best product,we will arrange professional staff to verify it. Return of goods or exchanging goods service is provided for you. Before shipment, we will conduct strict test on each product to ensure the quality of product. We pay close attention to the sales service, which can solve problems including handling imperfections of the goods.

GESTER International Co.,Limited is a professional manufacturer and saler of mask tester. Gester Instruments's electronic crockmeter series are created based on unremitting efforts. Gester Instruments Instruments flammability test chamber is carefully produced. It is treated with flame retardant, environmentally friendly fabrics, chemical and safe dyes. Its raw materials are skin-friendly. It is manufactured to meet international safety requirements. The vigorous development of crockmeter/rubbing fastness tester due to its hydrostatic head tester for sale features. Adopting high-quality imported stainless steel, it has a long service life.

We are always committed to becoming the top one brand in abrasion resistance tester industry in the world. Please contact.