| Short contact block is available in 1a, 1b. Long contact block is available in 1a1b, 2a. If more contacts are needed, just add the short one to the long one (The short one is not designed for being added by other block at its rear end). 2b, 2a2b, 3b, 4a, will be available with one-long-one-short blocks. By replacing the short block with another long one and becoming two-long blocks, 3a3b will be obtainable. |
