Function and feature
1.Used for measuring the inner size of helmet
2.Made up of Dial Plate,flexible stainless steel,fasten screw,handle
3.Outer ring made of flexible stainless steel
4.Turn to original shape automatically after use
5.Dail plate made of yellow brass
6.Measuring range: 49-62cm(adults),42-52cm(children)
Additional
If the sample be tested is new, which should be put in condition that temperature around 23±2°C,
humidity around 60±5% for more than 4 hours
Dongguan Hong Tu Instrument Co.,Ltd , specializes in developing and producing sales of testing instrument for helmet ,photovoltaic , leather ,footwear ,luggage ,sport equipments, metal and rubber , we have firm connections and full cooperation from China's National Third-part Quality Inspection and Notarization Center on producing and developing high-precision testing machines
We treasure the value of good quality , reasonable price and efficient service with customer satisfaction. we expert ourselves in providing our customers the best suitable testing designs and high quality testing machines to make you the utmost profit
Please feel free to contact us for any enquires from our wide range of products
1.High quality and best after-sell service
2.100% quality inspection before delivery
3.Managment Innovate
4.Strong R & D team
5.Can handle customers's feedback problems and doubt timely
6.Our testing machine have one year Warranty time