If you want a sample to check our quality, glad to tell you, we can send you sample for free, you only need to afford the freight cost to your country.
ISO standerd enterprise:GB/T 19001-2016/ISO9001:2015. SGS Report Number:QIP-ASR196262 Norsok M-650 Certificate-No.:1140020326-M-650-01. All the raw material with the CERTIFICATE OF QUALITY.
