| High Pressure Seamless Steel Cylinders:
GB5099,BV certificate. 4L,5L,6.3L,8Lwith diametre140mm
8,10L,15L,with diametre 159mm
20L,25L,32L,40L,50Lwith dianmetre 219mm
NECK Thead:PZ19.2&PZ27.8
Design wall Thickness:3.6mm,4.5mm,5.7mm
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