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...SD Series analog signal surge protection device is for installation at LPZ 0B -2 or higher, protecting the RS422 / RS485 devices against lightning &surge damages, providing coarse and fine protection. Some C...
...drilling, disaster relief, commercial promotions. 2. Hospital emergency rescue: Surgical lighting, equipment use, etc. 3. Home Appliance: Electronic energy-saving fluorescent, incandescent, small television ...
..., well drilling and excavation side column support, etc. We can supply DTH bits from 85mm to 305mm. The main products are:Similar or equal DHD, COP and SD series hammers, our DTH bits range from 85mm, 90mm, ...
...drill bits 2. Low air pressure holeDia.: 65-220mm 3. High air pressure hole Dia.: 85-305mm 4. Face type: Drop center/concave/convex/double gauge/flat 5. Our DTH Bit can be suitable for many types of DTH Hamm...