Hebei Baigong Industrial Co.,Ltd began to produce pressure vessels since 1953.Since 2007 they devoted themselves into CNG cylinders manufacturing. It occupies around 400,000 square meters, there are more than 1000 workers.The products include: ISO11439 CNG cylinders type 1&type 2, ISO9809 cylinders, ISO11120 cylinders, LNG cylinders, CNG trailers, CNG containers etc. BV, ISO, ECER certificates and other certificates for certain countries are available.