Is the excavator better or the rotary drilling rig?

On July 29th, 2065, 438+00 ... On July 28th, the ribbon-cutting ceremony of the second generation rotary drilling rig of Sany Heavy Industry was held ... Beijing Sany Heavy Industry Machinery Co., Ltd. took "quality changes the world" as its core value ... The cartoon of small excavation told you the precautions of excavators ... The sales department of Binzhou Forging Machinery Factory mainly engaged in rotary drilling rigs, engineering wells, trenchless steering rigs and forging operators-rotary drilling rigs. Engineering water well drilling rig, trenchless steering and supply rotary drilling rig, engineering water well drilling rig, trenchless steering rotary drilling rig ... The main business of Xuanhua Xuanhua Mining Machinery Co., Ltd. includes: rock drilling machinery; DTH drilling rig; Comprehensive drilling rig; Rotary drilling rig, etc. Vehicle-mounted water well drilling rig; Anchor drilling rig; Trenchless drilling rig; Furnace circuit breaker; Impactor; Drill bit; Drill pipe; Shanghai Wuyi Heavy Industry Import Bulldozer Accessories Co., Ltd. sells production, machinery and industrial products: bulldozers/excavators/rotary drilling rigs/pavers/crawler cranes/pipeline cranes/trenchless directional drilling rigs. ......