... for repairs in local, transformer substation overhaul, fire protection, meter reading, etc. May lay in the ordinary cars, facile and ... the original decadent square tube products, which is 4 kilogram/meter. Solved the original product unwieldy to carry and inconvient ... The product each meter could withstand 200 kilograms impulse, elongating to 2 meter, 2.8 meter, 3.2 meter, 3.8 meter, 4.0 meter. 5) The ...