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E-mail
2639495755@qq.com
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Phone
(+86)13290622837
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Address
South of Wanggezhuang Village, Boye East, Baoding City, Hebei Province
Kunshuo Conveyor Belt Business Department, Boye County
2639495755@qq.com
(+86)13290622837
South of Wanggezhuang Village, Boye East, Baoding City, Hebei Province

| Kunshuo heat-resistant conveyor belt testing method | Flame retardant performance grade | |
| K2 level | K3 level | |
| Flame duration | The total flame duration of six covered samples must be greater than 45 seconds, and any unit value must not exceed 15 seconds | The average flame duration of three covered samples shall not exceed 60 seconds |
| conductivity | Not greater than 3 × 10 Ω | |
| Reignibility | Any sample should be repaired and flames should reappear | |