... .7-1.25MPa boiler tube, coal boiler, STEAM boiler SZL packaged water-tube steam boiler is the double-cylinder,water-tube assembly ... via coal economizer,dust collector and draught fan.Compact soize,small installation spaxe,single-floor boiler room,cost-effective omfrastructure.Great ... /II1.5kwGL20P/II1.5kwGL-30P SZL series boiler JIALU company , Steam boiler, Coal boiler