Welcome to CPMC China - air compressor supplier provides Atlas Copco DrillAir XRHS 836 CDH XRVS 716 CDH XRHS 366 CDH XRVS 336 CDH portable compressor spare parts. Atlas Copco is the world's leading manufacturer of portable compressed air machines for a variety of industries. Atlas Copco developed a set of machines that successfully balanced size, yield and capacity.