Cylinder leaks usually occur at welded seams (on low-pressure cylinders) or at the cylinder valve. Proper quality control of materials and inspections, as required by the Department of Transportation (DOT), lessen the probability of cylinder leaks.

• 钢瓶泄漏通常发生在焊缝处（低压钢瓶），或者在钢瓶阀门处。正如交通部所要求的那样，材料的正确质量控制和检查降低了钢瓶泄漏的概率。